[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"grammar-exercise-019faa5f-8bb2-7f50-be24-b5f62971d3a0":3,"grammar-exercise-lesson-019b9875-a5b8-753a-8892-02d60cf124f3":173},["Reactive",4],{"id":5,"grammarPage":6,"title":7,"instructions":8,"displayOrder":9,"type":10,"questions":11,"ogImageUrl":172},"019faa5f-8bb2-7f50-be24-b5f62971d3a0","\u002Fapi\u002Fgrammar_pages\u002F019b9875-a5b8-753a-8892-02d60cf124f3","Build Duration, Negatives, and Questions","Tap the words in the correct order to build each sentence. One word does not belong.",2,"sentence_builder",[12,34,47,63,80,94,112,126,143,158],{"id":13,"sentenceTemplate":14,"displayOrder":15,"explanation":16,"exampleSentence":17,"blanks":18},"019fc2c4-a8ce-7b88-9947-d7a98d383991","Build the sentence: __1__",0,"The fronted phrase fixes the later past point first; then use subject + 'had been' + verb-ing + duration.","She had been reading for an hour before dinner.",[19],{"id":20,"blankNumber":21,"options":22},"019fc2c4-a8ce-7b20-9947-d7a98c8c90cd",1,[23,27,31],{"id":24,"optionText":25,"isCorrect":26,"displayOrder":15},"019fc2c4-a8ce-7a64-9947-d7a98b973b4d","By dinner, Nina had been studying for three hours.",true,{"id":28,"optionText":29,"isCorrect":30,"displayOrder":21},"019fc2c4-a8ce-7ac4-9947-d7a98c1db303","was",false,{"id":32,"optionText":33,"isCorrect":30,"displayOrder":9},"019fc2c4-a8ce-7af8-9947-d7a98c7b4478","is",{"id":35,"sentenceTemplate":14,"displayOrder":21,"explanation":36,"exampleSentence":37,"blanks":38},"019fc2c4-a8ce-7c58-9947-d7a98fccf6ef","'Since sunrise' gives the starting point of the waiting before the bus arrived.","We had been working since dawn when the storm began.",[39],{"id":40,"blankNumber":21,"options":41},"019fc2c4-a8ce-7c20-9947-d7a98fae9515",[42,44],{"id":43,"optionText":29,"isCorrect":30,"displayOrder":15},"019fc2c4-a8ce-7bdc-9947-d7a98e0beb00",{"id":45,"optionText":46,"isCorrect":26,"displayOrder":21},"019fc2c4-a8ce-7c00-9947-d7a98ed7025e","They had been waiting since sunrise when the bus arrived.",{"id":48,"sentenceTemplate":14,"displayOrder":9,"explanation":49,"exampleSentence":50,"blanks":51},"019fc2c4-a8ce-7d38-9947-d7a994084415","'All afternoon' emphasizes the duration of the rehearsal before the concert.","The actors had been practicing all day before the show.",[52],{"id":53,"blankNumber":21,"options":54},"019fc2c4-a8ce-7d00-9947-d7a993639a9a",[55,58,61],{"id":56,"optionText":57,"isCorrect":26,"displayOrder":15},"019fc2c4-a8ce-7c9c-9947-d7a990c34403","The musicians had been rehearsing all afternoon before the concert began.",{"id":59,"optionText":60,"isCorrect":30,"displayOrder":21},"019fc2c4-a8ce-7cc0-9947-d7a991a98589","rehearse",{"id":62,"optionText":29,"isCorrect":30,"displayOrder":9},"019fc2c4-a8ce-7ce0-9947-d7a9929aec70",{"id":64,"sentenceTemplate":65,"displayOrder":66,"explanation":67,"exampleSentence":68,"blanks":69},"019fc2c4-a8ce-7e18-9947-d7a99860819a","Build the negative sentence: __1__",3,"The negative form is 'had not been + verb-ing'.","She had not been feeling well before the interview.",[70],{"id":71,"blankNumber":21,"options":72},"019fc2c4-a8ce-7ddc-9947-d7a99773fece",[73,75,77],{"id":74,"optionText":29,"isCorrect":30,"displayOrder":15},"019fc2c4-a8ce-7d7c-9947-d7a995024eb5",{"id":76,"optionText":33,"isCorrect":30,"displayOrder":21},"019fc2c4-a8ce-7da0-9947-d7a995bbcd38",{"id":78,"optionText":79,"isCorrect":26,"displayOrder":9},"019fc2c4-a8ce-7dc0-9947-d7a9967c551e","Leo had not been sleeping well before the exam.",{"id":81,"sentenceTemplate":65,"displayOrder":82,"explanation":83,"exampleSentence":84,"blanks":85},"019fc2c4-a8ce-7edc-9947-d7a99ac277d9",4,"'Hadn't been paying' is the contracted negative form of the past perfect continuous.","They hadn't been listening during the meeting.",[86],{"id":87,"blankNumber":21,"options":88},"019fc2c4-a8ce-7ea0-9947-d7a99a3bd2b7",[89,92],{"id":90,"optionText":91,"isCorrect":26,"displayOrder":15},"019fc2c4-a8ce-7e5c-9947-d7a999204050","Maya hadn't been paying attention during the briefing.",{"id":93,"optionText":29,"isCorrect":30,"displayOrder":21},"019fc2c4-a8ce-7e80-9947-d7a999a65c4c",{"id":95,"sentenceTemplate":96,"displayOrder":97,"explanation":98,"exampleSentence":99,"blanks":100},"019fc2c4-a8cf-7025-a9a6-de7dc18638c6","Build the question: __1__",5,"A yes\u002Fno question begins with 'Had', followed by the subject and 'been + verb-ing'; the when-clause gives the later past event.","Had she been waiting long before you called?",[101],{"id":102,"blankNumber":21,"options":103},"019fc2c4-a8ce-7f88-9947-d7a99d5ca947",[104,107,109],{"id":105,"optionText":106,"isCorrect":30,"displayOrder":15},"019fc2c4-a8ce-7f1c-9947-d7a99b4d9039","has",{"id":108,"optionText":29,"isCorrect":30,"displayOrder":21},"019fc2c4-a8ce-7f3c-9947-d7a99b97f76b",{"id":110,"optionText":111,"isCorrect":26,"displayOrder":9},"019fc2c4-a8ce-7f68-9947-d7a99c96d1e3","Had you been working when the alarm sounded?",{"id":113,"sentenceTemplate":96,"displayOrder":114,"explanation":115,"exampleSentence":116,"blanks":117},"019fc2c4-a8cf-70e9-a9a6-de7dc2c4ba3b",6,"Use 'How long + had + subject + been + verb-ing' to ask about duration before a past event.","How long had Leo been driving before he stopped?",[118],{"id":119,"blankNumber":21,"options":120},"019fc2c4-a8cf-70ad-a9a6-de7dc29342f8",[121,124],{"id":122,"optionText":123,"isCorrect":26,"displayOrder":15},"019fc2c4-a8cf-706d-a9a6-de7dc1b27ff1","How long had they been living in Berlin before they moved?",{"id":125,"optionText":106,"isCorrect":30,"displayOrder":21},"019fc2c4-a8cf-7091-a9a6-de7dc21090d6",{"id":127,"sentenceTemplate":128,"displayOrder":129,"explanation":130,"exampleSentence":131,"blanks":132},"019fc2c4-a8cf-71c1-a9a6-de7dc56ff327","Build the explanation: __1__",7,"The ongoing activity of planting explains the visible dirt on her hands.","His shoes were muddy because he had been gardening.",[133],{"id":134,"blankNumber":21,"options":135},"019fc2c4-a8cf-7189-a9a6-de7dc546969e",[136,138,140],{"id":137,"optionText":33,"isCorrect":30,"displayOrder":15},"019fc2c4-a8cf-7129-a9a6-de7dc2fc239c",{"id":139,"optionText":29,"isCorrect":30,"displayOrder":21},"019fc2c4-a8cf-7149-a9a6-de7dc3cfd3cf",{"id":141,"optionText":142,"isCorrect":26,"displayOrder":9},"019fc2c4-a8cf-7169-a9a6-de7dc46fc1bc","Her hands were dirty because she had been planting flowers.",{"id":144,"sentenceTemplate":128,"displayOrder":145,"explanation":146,"exampleSentence":147,"blanks":148},"019fc2c4-a8cf-7279-a9a6-de7dc8d3690a",8,"The running had just stopped, but its result—being out of breath—was still visible.","She was sweating because she had been cycling.",[149],{"id":150,"blankNumber":21,"options":151},"019fc2c4-a8cf-7245-a9a6-de7dc7e6a6f8",[152,155],{"id":153,"optionText":154,"isCorrect":26,"displayOrder":15},"019fc2c4-a8cf-7205-a9a6-de7dc65db736","Omar was out of breath because he had been running.",{"id":156,"optionText":157,"isCorrect":30,"displayOrder":21},"019fc2c4-a8cf-7225-a9a6-de7dc6f95f29","were",{"id":159,"sentenceTemplate":128,"displayOrder":160,"explanation":161,"exampleSentence":162,"blanks":163},"019fc2c4-a8cf-732d-a9a6-de7dc9d9a07f",9,"The smell was the past result of baking that had recently stopped.","The room was warm because the oven had been heating it.",[164],{"id":165,"blankNumber":21,"options":166},"019fc2c4-a8cf-72f9-a9a6-de7dc9a95c30",[167,169],{"id":168,"optionText":157,"isCorrect":30,"displayOrder":15},"019fc2c4-a8cf-72b9-a9a6-de7dc96227f5",{"id":170,"optionText":171,"isCorrect":26,"displayOrder":21},"019fc2c4-a8cf-72d9-a9a6-de7dc9a0dafd","The kitchen smelled wonderful because Nina had been baking.","\u002Fuploads\u002Fimages\u002Fgpimg_89c147ed-cd20-4e02-97de-ff9ecbd95027_hero.webp",{"title":174,"slug":175,"language":176,"level":177},"Past Perfect Continuous","past-perfect-continuous","en","B2"]