[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"grammar-exercise-01a01413-9c40-7f38-adb3-3a1e9968f14c":3,"grammar-exercise-lesson-019b84bb-173e-7921-86fd-fc9331dcf1d9":276},["Reactive",4],{"id":5,"grammarPage":6,"title":7,"instructions":8,"displayOrder":9,"type":10,"questions":11,"ogImageUrl":275},"01a01413-9c40-7f38-adb3-3a1e9968f14c","\u002Fapi\u002Fgrammar_pages\u002F019b84bb-173e-7921-86fd-fc9331dcf1d9","Past Modals - Find and Fix","One word in each sentence is wrong. Tap it, then choose the correction.",5,"find_and_fix",[12,37,60,83,109,135,157,182,199,217,239,260],{"id":13,"sentenceTemplate":14,"displayOrder":15,"explanation":16,"exampleSentence":17,"blanks":18,"payload":19},"01a01413-9c41-713e-93f8-5f0a1e0a7c1c","I regret missing the deadline; I should of set a reminder.",0,"Write 'should have', never 'should of', before a past participle.","I regret missing the deadline; I should have set a reminder.",[],{"words":20,"correct":31,"wrongIndex":32,"corrections":33},[21,22,23,24,25,21,26,27,28,29,30],"I","regret","missing","the","deadline;","should","of","set","a","reminder.","have",7,[31,34,35,36],"has","had","having",{"id":38,"sentenceTemplate":39,"displayOrder":40,"explanation":41,"exampleSentence":42,"blanks":43,"payload":44},"01a01413-9c41-71b6-93f8-5f0a1ebd05f5","I deleted the only copy, and I deeply regret it; I might have made a backup.",1,"The speaker regrets a past mistake, so 'should have made' expresses the better action.","I deleted the only copy, and I deeply regret it; I should have made a backup.",[],{"words":45,"correct":26,"wrongIndex":55,"corrections":56},[21,46,24,47,48,49,21,50,22,51,21,52,31,53,29,54],"deleted","only","copy,","and","deeply","it;","might","made","backup.",11,[26,57,58,59],"must","can","will",{"id":61,"sentenceTemplate":62,"displayOrder":63,"explanation":64,"exampleSentence":65,"blanks":66,"payload":67},"01a01413-9c41-720e-93f8-5f0a1ed7ef5e","You mocked his accent, which was unkind; you might not have done that.",2,"The sentence criticizes an unkind past action, so use 'should not have done'.","You mocked his accent, which was unkind; you should not have done that.",[],{"words":68,"correct":26,"wrongIndex":80,"corrections":81},[69,70,71,72,73,74,75,76,52,77,31,78,79],"You","mocked","his","accent,","which","was","unkind;","you","not","done","that.",8,[26,82,57,58],"could",{"id":84,"sentenceTemplate":85,"displayOrder":86,"explanation":87,"exampleSentence":88,"blanks":89,"payload":90},"01a01413-9c41-725e-93f8-5f0a1f1a5226","Four couriers visited, and all four are equally likely; the unsigned parcel should have come from Ali.",3,"Several explanations remain possible, so 'might have come' marks an uncertain guess.","Four couriers visited, and all four are equally likely; the unsigned parcel might have come from Ali.",[],{"words":91,"correct":52,"wrongIndex":105,"corrections":106},[92,93,94,49,95,96,97,98,99,24,100,101,26,31,102,103,104],"Four","couriers","visited,","all","four","are","equally","likely;","unsigned","parcel","come","from","Ali.",12,[52,57,107,108],"can't","would",{"id":110,"sentenceTemplate":111,"displayOrder":112,"explanation":113,"exampleSentence":114,"blanks":115,"payload":116},"01a01413-9c41-72aa-93f8-5f0a1f957334","Both workshops were equally useful; we could have chose pottery, but freely chose coding and have no regrets.",4,"After 'could have', use the past participle 'chosen' for the available option that was not taken.","Both workshops were equally useful; we could have chosen pottery, but freely chose coding and have no regrets.",[],{"words":117,"correct":130,"wrongIndex":80,"corrections":131},[118,119,120,98,121,122,82,31,123,124,125,126,123,127,49,31,128,129],"Both","workshops","were","useful;","we","chose","pottery,","but","freely","coding","no","regrets.","chosen",[130,132,133,134],"choose","choosing","chooses",{"id":136,"sentenceTemplate":137,"displayOrder":9,"explanation":138,"exampleSentence":139,"blanks":140,"payload":141},"01a01413-9c41-72f6-93f8-5f0a1fee3704","The safe was opened; only Priya knew the code. The only possible conclusion is she might have opened it.","The stated facts leave only one possible conclusion, so use 'must have opened'.","The safe was opened; only Priya knew the code. The only possible conclusion is she must have opened it.",[],{"words":142,"correct":57,"wrongIndex":155,"corrections":156},[143,144,74,145,47,146,147,24,148,143,47,149,150,151,152,52,31,153,154],"The","safe","opened;","Priya","knew","code.","possible","conclusion","is","she","opened","it.",15,[57,26,107,108],{"id":158,"sentenceTemplate":159,"displayOrder":160,"explanation":161,"exampleSentence":162,"blanks":163,"payload":164},"01a01413-9c41-733e-93f8-5f0a20a63271","Milo was live on video in Madrid then; he can't have signs the paper in Oslo.",6,"After 'can't have', use the past participle 'signed' for the event that the evidence rules out.","Milo was live on video in Madrid then; he can't have signed the paper in Oslo.",[],{"words":165,"correct":177,"wrongIndex":55,"corrections":178},[166,74,167,168,169,170,171,172,173,107,31,174,24,175,170,176],"Milo","live","on","video","in","Madrid","then;","he","signs","paper","Oslo.","signed",[177,179,180,181],"sign","signing","been",{"id":183,"sentenceTemplate":184,"displayOrder":32,"explanation":185,"exampleSentence":186,"blanks":187,"payload":188},"01a01413-9c41-738a-93f8-5f0a2168a2e6","The sealed lift never opened, so the movers might have used it.","The sealed lift made its use impossible, so use 'couldn't have used'.","The sealed lift never opened, so the movers couldn't have used it.",[],{"words":189,"correct":197,"wrongIndex":80,"corrections":198},[143,190,191,192,193,194,24,195,52,31,196,154],"sealed","lift","never","opened,","so","movers","used","couldn't",[197,26,57,82],{"id":200,"sentenceTemplate":201,"displayOrder":80,"explanation":202,"exampleSentence":203,"blanks":204,"payload":205},"01a01413-9c41-73d2-93f8-5f0a22651e3c","Security video proves the visitor must have took the parcel.","After 'must have', use the past participle 'taken', not the past-simple form.","Security video proves the visitor must have taken the parcel.",[],{"words":206,"correct":212,"wrongIndex":32,"corrections":213},[207,169,208,24,209,57,31,210,24,211],"Security","proves","visitor","took","parcel.","taken",[212,214,215,216],"take","taking","takes",{"id":218,"sentenceTemplate":219,"displayOrder":220,"explanation":221,"exampleSentence":222,"blanks":223,"payload":224},"01a01413-9c41-741e-93f8-5f0a22d2282a","The announcement was unclear, so the train might've went to platform four.",9,"The contraction 'might've' is followed by the past participle 'gone'.","The announcement was unclear, so the train might've gone to platform four.",[],{"words":225,"correct":234,"wrongIndex":80,"corrections":235},[143,226,74,227,194,24,228,229,230,231,232,233],"announcement","unclear,","train","might've","went","to","platform","four.","gone",[234,236,237,238],"go","going","goes",{"id":240,"sentenceTemplate":241,"displayOrder":242,"explanation":243,"exampleSentence":244,"blanks":245,"payload":246},"01a01413-9c41-7462-93f8-5f0a23552bf6","The privacy rule forbade it, but you posted the address publicly; you should have shared it.",10,"The rule and criticism require 'shouldn't have shared' for the wrong past action.","The privacy rule forbade it, but you posted the address publicly; you shouldn't have shared it.",[],{"words":247,"correct":256,"wrongIndex":105,"corrections":257},[143,248,249,250,251,125,76,252,24,253,254,76,26,31,255,154],"privacy","rule","forbade","it,","posted","address","publicly;","shared","shouldn't",[256,197,258,259],"mightn't","wouldn't",{"id":261,"sentenceTemplate":262,"displayOrder":55,"explanation":263,"exampleSentence":264,"blanks":265,"payload":266},"01a01413-9c41-74ca-93f8-5f0a23e433f7","This is only a guess: the sensor might has recorded the brief movement.","After the modal 'might', use 'have' plus the past participle to make an uncertain past guess.","This is only a guess: the sensor might have recorded the brief movement.",[],{"words":267,"correct":31,"wrongIndex":80,"corrections":274},[268,151,47,29,269,24,270,52,34,271,24,272,273],"This","guess:","sensor","recorded","brief","movement.",[31,35,36,151],"\u002Fuploads\u002Fimages\u002Fgpimg_70075848-7d68-4a2d-bd23-3cfb37b4e7ed_hero.webp",{"title":277,"slug":278,"language":279,"level":280},"Modals About the Past — Should Have, Might Have, Could Have","modals-about-the-past-should-have-might-have-could-have","en","B1"]