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In English, the choice of verbs in tag questions depends on the tense, modali...

In English, the choice of verbs in tag questions depends on the tense, modality, and subject of the declarative sentence. Tag questions are short questions added to the end of declarative sentences to form a question. They are usually formed by adding a question word like "isn't it?", "don't they?", or "won't you?" to the end of the declarative sentence.Here are some examples and explanations of how verbs are chosen in tag questions:Verbs in the Present TenseIf the declarative sentence is in the present tensethe verb in the tag question is usually the same as the verb in the declarative sentence, followed by the subject pronoun in the appropriate formExampleHe studies hard, doesn't he?In this examplethe declarative sentence is in the present tense ("studies"), so the tag question uses the same Verb ("doesn't study") and adds the subject pronoun "he" in the appropriate form ("doesn't he?")Verbs in the Past TenseIf the declarative sentence is in the past tensethe Verb in the tag question is usually the past tense form of the Verb in the declarative sentence, followed by the subject pronoun in the appropriate formExampleShe went to the store, didn't she?In this examplethe declarative sentence is in the past tense ("went"), so the tag question uses the past tense form of the Verb ("didn't go") and adds the subject pronoun "she" in the appropriate form ("didn't she?")Modal VerbsModal verbs (such as "can" "could," "must," "may," "might," "should," "will," "would," etc.) are used in tag questions in the same way as they are used in the declarative sentenceExampleYou can swim, can't you?In this examplethe declarative sentence uses the modal Verb "can," so the tag question uses the same modal Verb ("can't") and adds the subject pronoun "you" in the appropriate form ("can't you?")Verbs with "have" or "has"When "have" or "has" is used as a main Verb in the declarative sentence (to express possession or the perfect tense)the tag question usually uses "don't" or "hasn't" respectivelyExampleShe has a new car, doesn't she?In this examplethe declarative sentence uses "has" as a main Verb, so the tag question uses "doesn't" and adds the subject pronoun "she" in the appropriate form ("doesn't she?")Special VerbsThere are some special Verbs that have different forms in tag questions. For example"ought to" becomes "shouldn't" or "oughtn't" in the tag question, and "used to" becomes "didn't" or "usedn't" in the tag questionExampleYou ought to apologize, shouldn't you?In this examplethe declarative sentence uses "ought to," so the tag question uses "shouldn't" and adds the subject pronoun "you" in the appropriate form ("shouldn't you?")Verbs with NegativesIf the declarative sentence contains a negative word (such as "no" "nothing," "nobody," "never," "few," "seldom," "hardly," "rarely," "little," etc.), the tag question is usually formed with a positive VerbExampleShe never lies, does she?In this examplethe declarative sentence contains the negative word "never," so the tag question uses the positive Verb "does" and adds the subject pronoun "she" in the appropriate form ("does she?")Verbs with "Wish"If the declarative sentence contains the Verb "wish" the tag question usually uses "may" followed by the subject pronounExampleI wish I could fly, may I?In this examplethe declarative sentence contains the Verb "wish," so the tag question uses "may" and adds the subject pronoun "I" in the appropriate form ("may I?")In summary, the choice of Verbs in tag questions depends on the tense, modality, and subject of the declarative sentence. By understanding these rules, you can correctly form tag questions in English.