Sentence,Type,Length (num. of syllables),Ungrammatical stimuli <target structure>,Grammatical stimuli <target structure> / model responses,Target structure,,
P01,practice,9,NA,Not everyone can learn a language.,indefinite article,,
P02,practice,9,Of course everyone love comic books.,Of course everyone loves comic books.,3rd person -s,,
P03,practice,12,NA,We have been using computers for many years.,present perfect progressive,,
P04,practice,15,It is more harder to learn Japanese than to learn English.,It is harder to learn Japanese than to learn English.,comparatives,,
A01,article,8,You should <have ø word with> each of them.,You should <have a word with> each of them.,indefinite article,,
A02,article,8,There is <the cake> there all the time.,There is <ø cake> there all the time.,zero article,,
A03,article,9,This film starts with <ø skinny dipping scene>.,This film starts with <a skinny dipping scene>. ,indefinite article,,
A04,article,9,"I have: beer, wine or <the lemonade>. ","I have: beer, wine or <ø lemonade>. ",zero article,,
A05,article,10,That little boy is having <the long sleep>.,That little boy is having <a long sleep>.,indefinite article,,
A06,article,10,We inhabit a world without <the hope>.,We inhabit a world without <ø hope>.,zero article,,
A07,article,10,Children usually prefer <the sweet drinks>. ,Children usually prefer <ø sweet drinks>. ,zero article,,
A08,article,10,It seemed like a good idea <at a time>.,It seemed like a good idea <at the time>.,definite article,,
A09,article,10,I cannot stand the smell of <a cabbage>. ,I cannot stand the smell of <ø cabbage>. ,zero article,,
A10,article,11,Apparently Kate had <ø accident> last week. ,Apparently Kate had <an accident> last week. ,indefinite article,,
A11,article,11,Boris Johnson wants Britain to go to <ø pub>. ,Boris Johnson wants Britain to go to <the pub>. ,definite article,,
A12,article,12,Linda asks what you want to have for <the dinner>.,Linda asks what you want to have for <ø dinner>?,zero article,,
A13,article,12,I thought I had to book six months <in the advance>.,I thought I had to book six months <in ø advance>.,zero article,,
A14,article,12,My mother came up to London <a very next day>.,My mother came up to London <the very next day>.,definite article,,
A15,article,13,I started to read <the newspapers> and ø magazines.,I started to read <ø newspapers> and ø magazines.,zero article,,
A16,article,13,We don't have <ø radio> or music on much at all now.,We don't have <the radio> or ø music on much at all now.,definite article,,
A17,article,13,"There seemed to be <a people> about, but I wasn't sure.","There seemed to be <ø people> about, but I wasn't sure.",zero article,,
A18,article,13,"Though she had long retired, she was <ø wonderful teacher>.","Though she had long retired, she was <a wonderful teacher>.",indefinite article,,
A19,article,13,I normally prefer to do house chores <in ø morning>. ,I normally prefer to do house chores <in the morning>. ,definite article,,
A20,article,13,"When you blend it all, it just tastes of <a banana>.","When you blend it all, it just tastes of <ø banana>.",zero article,,
B01,article,14,They will put you in touch with <ø drug counselling agency>.,They will put you in ø touch with <a drug counselling agency>.,indefinite article,,
B02,article,14,They say she's <a youngest prima ballerina> ever. ,They say she's <the youngest prima ballerina> ever. ,definite article,,
B03,article,14,I went in and settled myself down. <A floor> was a bit damp.,I went in and settled myself down. <The floor> was a bit damp.,definite article,,
B04,article,15,What <on the Earth> has it got to do with him in the first place?,What <on ø Earth> has this got to do with him in the first place?,zero article,,
B05,article,15,I wonder what sort of <the person> would stab a child to death. ,I wonder what sort of <a person> would stab a child to death. ,indefinite article,,
B06,article,16,John proved once more his extreme simplicity of <the character>.,John proved once more his extreme simplicity of <ø character>.,zero article,,
B07,article,16,"Here, the question is whether to separate <ø man> from the artist. ","Here, the question is whether to separate <the man> from the artist. ",definite article,,
B08,article,16,I've only got one pair of shoes but they are <the nice pair> of ø shoes.,I've only got one pair of shoes but they are <a nice pair> of ø shoes. ,indefinite article,,
B09,article,16,She has shown herself to be <a best player> in the world by far. ,She has shown herself to be <the best player> in the world by far. ,definite article,,
B10,article,17,"Louise flung the wardrobe open, selected <ø blouse>, and rushed out again.","Louise flung the wardrobe open, selected <a blouse>, and rushed out again.",indefinite article,,
B11,article,17,Todd showed <the determination> I had never seen in him before. ,Todd showed <a determination> I had never seen in him before. ,indefinite article,,
B12,article,17,Without <the language> we would not be able to conceive it either.,Without <ø language> we would not be able to conceive it either.,zero article,,
B13,article,17,"It all depends on the intensity of <a work>, not the amount.","It all depends on the intensity of <the work>, not the amount.",definite article,,
B14,article,17,"Think about your appearance, and how you present yourself as <ø person>.","Think about your appearance, and how you present yourself as <a person>.",indefinite article,,
B15,article,17,A new survey shows that one in three students gets drunk <once the week>.,A new survey shows that one in three students gets drunk <once a week>.,indefinite article,,
B16,article,18,Political prisoners do not receive <the fair trials> in Morocco.,Political prisoners do not receive <ø fair trials> in Morocco.,zero article,,
B17,article,18,"If you've got an iPhone you don't need <ø iPad>, it's just a bigger iPhone.","If you've got an iPhone you don't need <an iPad>, it's just a bigger iPhone.",indefinite article,,
B18,article,18,I think the exact location of this storeroom should remain <the secret>.,I think the exact location of this storeroom should remain <a secret>.,indefinite article,,
B19,article,18,I've had another word with <a personnel> and they say that they can't help.,I've had another word with <ø personnel> and they say that they can't help. ,zero article,,
B20,article,19,I sat down in a doorway and continued crying. Slowly <ø tears> subsided.,I sat down in a doorway and continued crying. Slowly <the tears> subsided.,definite article,,
C01,article,20,They finally introduced <the amendment> to the rules to cover such cases.,They finally introduced <an amendment> to the rules to cover such cases.,indefinite article,,
C02,article,20,Jim was due to finish <a work> at seven o'clock but he left an hour early.,Jim was due to finish <ø work> at seven o'clock but he left an hour early.,zero article,,
C03,article,20,"Well I just don't like <a liquorice> in general, it tastes like cough medicine.","Well I just don't like <ø liquorice> in general, it tastes like ø cough medicine.",zero article,,
C04,article,20,It was like that feeling you get when the sun first hits you after breaking through <ø clouds>.,It was like that feeling you get when the sun first hits you after breaking through <the clouds>.,definite article,,
C05,article,20,"The school offers <the courses> in linguistics, psychology, and other subjects. ","The school offers <ø courses> in linguistics, psychology, and other subjects. ",zero article,,
C06,article,21,This ill-fated soap opera is rising <despite a fact> that it ends in July.,This ill-fated soap opera is rising <despite the fact> that it ends in July.,definite article,,
C07,article,22,"The college library has <the interesting books>, as well as the latest art magazines.","The college library has <ø interesting books>, as well as the latest art magazines.",zero article,,
C08,article,22,Ask the computer shop expert or a friend who knows about <the computers> to help you.,Ask the computer shop expert or a friend who knows about <ø computers> to help you.,zero article,,
C09,article,22,Many of the people we care for with AIDS today were infected as <the teenagers>.,Many of the people we care for with AIDS today were infected as <ø teenagers>.,zero article,,
C10,article,22,The newspaper needs to give <a reader> a general idea of what is on ø display.,The newspaper needs to give <the reader> a general idea of what is on ø display.,definite article,,
C11,article,22,You will only be able to absorb a certain amount of information <at the time>.,You will only be able to absorb a certain amount of information <at a time>.,indefinite article,,
C12,article,23,"John let me in. Somebody else was already there, <the man> idly reading a newspaper.","John let me in. Somebody else was already there, <a man> idly reading a newspaper.",indefinite article,,
C13,article,23,<For ø long time> it has been known that heavy drinking during pregnancy can affect the baby.,<For a long time> it has been known that heavy drinking during pregnancy can affect the baby.,indefinite article,,
C14,article,23,It should be enough for John to check that everything is in order once <a week> is over.,It should be enough for John to check that everything is in order once <the week> is over.,definite article,,
C15,article,24,"In medieval England, <the drinking establishments> held an important social position.","In medieval England, <ø drinking establishments> held an important social position.",zero article,,
C16,article,25,"Visitors to <a Disney theme parks> near Orlando, Florida, have a lot of hotels to choose from.","Visitors to <the Disney theme parks> near Orlando, Florida, have a lot of hotels to choose from.",definite article,,
TA01,tense_aspect,8,I <left> New York with them next spring. ,I <will be leaving> New York with them next spring. ,future progressive,,
TA02,tense_aspect,8,I <work> here since early morning.,I <have been working> here since early morning.,present perfect progressive,,
TA03,tense_aspect,9,My father <will come> home yesterday.,My father <came> home yesterday.,past simple,,
TA04,tense_aspect,9,Sophie <never hears> the word before.,Sophie <had never heard> the word before.,past perfect,,
TA05,tense_aspect,9,"The others <move on> by now, surely.","The others <will have moved on> by now, surely.",future perfect,,
TA06,tense_aspect,9,By tomorrow the swelling <goes down>.,By tomorrow the swelling <will have gone down>.,future perfect,,
TA07,tense_aspect,11,I<'ll think> you may be right about those people.,I <think> you may be right about those people.,present simple,,
TA08,tense_aspect,11,When Mary reached the car she realised she <shakes>.,When Mary reached the car she realised she <was shaking>.,past progressive,,
TA09,tense_aspect,11,His teams <will play> eight Championship games so far.,His teams <have played> eight Championship games so far.,present perfect,,
TA10,tense_aspect,11,Jacob <repeatedly calls for> his Daddy.,Jacob <has been repeatedly calling for> his Daddy.,present perfect progressive,,
TA11,tense_aspect,12,I <have gotten back> to you as soon as I can.,I <will get back> to you as soon as I can.,future simple,,
TA12,tense_aspect,12,Tom <is reading> a newspaper when I went in. ,Tom <was reading> a newspaper when I went in. ,past progressive,,
TA13,tense_aspect,12,They <had waited for> you when you get back on board.,They <will be waiting for> you when you get back on board.,future progressive,,
TA14,tense_aspect,12,I <am preparing> myself for this my whole life.,I <have been preparing> myself for this my whole life.,present perfect progressive,,
TA15,tense_aspect,12,I <hoped> we have caught the wisdom of this novel. ,I <hope> we have caught the wisdom of this novel. ,present simple,,
TA16,tense_aspect,13,"Oh, I <had been hating> the police in the US.","Oh, I <hate> the police in the US.",present simple,,
TA17,tense_aspect,13,When you <will be> in bed I will bring up a hot drink.,When you <are> in bed I will bring up a hot drink.,present simple,,
TA18,tense_aspect,13,By dawn the sky <is clearing> and was a hard pale blue.,By dawn the sky <had cleared> and was a hard pale blue.,past perfect,,
TA19,tense_aspect,13,"Joshua, who <has stood> near the door, slipped out of the house.","Joshua, who <had been standing> near the door, slipped out of the house.",past perfect progressive,,
TA20,tense_aspect,13,I can't remember whether John <will say> yes or no.,I can't remember whether John <said> yes or no.,past simple,,
TA21,tense_aspect,13,Frank is optimistic that we <sort> it by today.,Frank is optimistic that we <will have sorted> it by today.,future perfect,,
TA22,tense_aspect,13,Since last year I <am struggling> towards getting better.,Since last year I <have been struggling> towards getting better.,present perfect progressive,,
TA23,tense_aspect,13,Josh <plans> a trip to London before he left for France.,Josh <had been planning> a trip to London before he left for France.,past perfect progressive,,
TB01,tense_aspect,14,"Don't worry about it, I <help> you with that anyway.","Don't worry about it, I <will help> you with that anyway.",future simple,,
TB02,tense_aspect,14,I haven't got the faintest idea what you <had talked about>.,I haven't got the faintest idea what you <are talking about>.,present progressive,,
TB03,tense_aspect,14,Next week Julie <represented> England against Korea.,Next week Julie <will be representing> England against Korea.,future progressive,,
TB04,tense_aspect,14,Until tonight Jane <is never tempted> by anyone.,Until tonight Jane <had never been tempted> by anyone.,past perfect,,
TB05,tense_aspect,14,In three years' time all new cars <have been developed> this way.,In three years' time all new cars <will have been developed> this way.,future perfect,,
TB06,tense_aspect,14,They said that they <will have been talking> about it themselves. ,They said that they <had been talking> about it themselves. ,past perfect progressive,,
TB07,tense_aspect,15,Hopefully we <had met> him in the Premier League next season. ,Hopefully we <will meet> him in the Premier League next season. ,future simple,,
TB08,tense_aspect,15,Hopefully they <are coming up> with something by tomorrow.,Hopefully they <will have come up> with something by tomorrow.,future perfect,,
TB09,tense_aspect,15,"When man invented the motor car, life <changes> for everyone.","When man invented the motor car, life <changed> for everyone.",past simple,,
TB10,tense_aspect,16,"Jack <will have sighed> heavily, as if this scene were depressing him.","Jack <sighed> heavily, as if this scene were depressing him.",past simple,,
TB11,tense_aspect,16,She <has returned> to England in the autumn of 1819.,She <returned> to England in the autumn of 1819.,past simple,,
TB12,tense_aspect,16,"If you come back in the morning, we <had sorted> you out again.","If you come back in the morning, we <will sort> you out again.",future simple,,
TB13,tense_aspect,16,I am very happy with how things <were going> at the moment.,I am very happy with how things <are going> at the moment.,present progressive,,
TB14,tense_aspect,16,"When Alice opened the door, Johnny <stands> there silently laughing.","When Alice opened the door, Johnny <was standing> there silently laughing.",past progressive,,
TB15,tense_aspect,16,That's what we <have attempted> to find out in twenty minutes' time.,That's what we <will be attempting> to find out in twenty minutes' time.,future progressive,,
TB16,tense_aspect,16,"But recently the medals, especially for the men, <dry up>. ","But recently the medals, especially for the men, <have dried up>. ",present perfect,,
TB17,tense_aspect,16,"Tina looked guilty, as if she <is just betraying> a secret.","Tina looked guilty, as if she <had just betrayed> a secret.",past perfect,,
TB18,tense_aspect,17,When he came into the kitchen he saw that his sister <is crying>.,When he came into the kitchen he saw that his sister <was crying>.,past progressive,,
TB19,tense_aspect,17,Many soldiers <were fighting> in battle for the first time tomorrow. ,Many soldiers <will be fighting> in battle for the first time tomorrow. ,future progressive,,
TB20,tense_aspect,17,"Over the past few months, seven candidates <attend> different courses.","Over the past few months, seven candidates <have attended> different courses.",present perfect,,
TB21,tense_aspect,17,The man would have suffered the injuries even if he <wore> a belt.,The man would have suffered the injuries even if he <had been wearing> a belt.,past perfect progressive,,
TB22,tense_aspect,17,"When the bell goes, they <had been sitting> for seven and a half hours.","When the bell goes, they <will have been sitting> for seven and a half hours.",future perfect progressive,,
TB23,tense_aspect,18,I <have reckoned> those people will be giving us most of their business.,I <reckon> those people will be giving us most of their business.,present simple,,
TB24,tense_aspect,18,For a big man he could move with surprising speed when he <had wanted> to.,For a big man he could move with surprising speed when he <wanted> to.,past simple,,
TB25,tense_aspect,18,That is why we <had had> tuna fish this evening instead of poached salmon.,That is why we <are having> tuna fish this evening instead of poached salmon.,present progressive,,
TB26,tense_aspect,18,Your father arrived a few minutes ago and <had waited> to see you.,Your father arrived a few minutes ago and <is waiting> to see you.,present progressive,,
TC01,tense_aspect,20,The horrific attack happened as the victim <has walked> along an unlit path.,The horrific attack happened as the victim <was walking> along an unlit path.,past progressive,,
TC02,tense_aspect,20,Jonathan will have just returned from Japan where he <has learned> about business.,Jonathan will have just returned from Japan where he <will have been learning> about business.,future perfect progressive,,
TC03,tense_aspect,20,"Because they looked rather similar, people <consider> the group a family.","Because they looked rather similar, people <considered> the group a family.",past simple,,
TC04,tense_aspect,21,Now it is hoped future generations <had been leaving> statistics like that behind.,Now it is hoped future generations <will leave> statistics like that behind.,future simple,,
TC05,tense_aspect,21,She said that the patient <is previously suffering> severe side effects from the drug.,She said that the patient <had previously suffered> side effects from the drug.,past perfect,,
TC06,tense_aspect,21,I <hoped> that they will address it very strongly at the Labour Party conference.,I <hope> that they will address it very strongly at the Labour Party conference.,present simple,,
TC07,tense_aspect,22,The beer Joe <has been drinking> steadily all day was weighing heavily on his stomach.,The beer Joe <had been drinking> steadily all day was weighing heavily on his stomach.,past perfect progressive,,
TC08,tense_aspect,22,Sometimes an enquiry <was going on> for days before a new element emerges.,Sometimes an enquiry <will have been going on> for days before a new element emerges.,future perfect progressive,,
TC09,tense_aspect,22,"When the train arrives at the station at 10PM, I <sat> on it for 8 hours straight. ","When the train arrives at the station at 10PM, I <will have been sitting> on it for 8 hours straight. ",future perfect progressive,,
TC10,tense_aspect,22,At this time tomorrow they <have been sailing> around the world for exactly 80 days. ,At this time tomorrow they <will have been sailing> around the world for 80 days. ,future perfect progressive,,
TC11,tense_aspect,22,"When I entered into the agreement, I <believe> that a marriage to Jane could have worked.","When I entered into the agreement, I <believed> that a marriage to Jane could have worked.",past simple,,
TC12,tense_aspect,23,Miller <will currently consider> an autumn debut with his own gallery in London.,Miller <is currently considering> an autumn debut with his own gallery in London.,present progressive,,
TC13,tense_aspect,23,Since launching our UK service we <receive> over one thousand requests for practical help.,Since launching our UK service we <have received> over one thousand requests for practical help.,present perfect,,
TC14,tense_aspect,24,They <increase> their share of the vote in every General Election since 1974.,They <have increased> their share of the vote in every General Election since 1974.,present perfect,,
TC15,tense_aspect,24,The National Rivers Authority <are preparing> proposals to deal with this for six years.,The National Rivers Authority <has been preparing> proposals to deal with this for six years.,present perfect progressive,,