1.

They has not changed his decisions (Correct the sentence)​

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Answer:

They has not changed his DECISIONS : Correct the sentence

  • The given incorrect sentence has been SAID to correct.

  • So the RIGHT sentence is 'They didn't change their decision.'

  • The correct sentence is an example of past Indefinite Tense.

  • It is a negative sentence of past indefinite tense.

  • Structure of Past Indefinite Tense : 'Subject + main verb 's past form + OBJECT ' _ it is restricted for affirmative sentence. Example : He WROTE me a letter. Here 'wrote' is past form of 'write ( present form )' and its past participle form is 'written'

  • But past indefinite tense has also an auxiliary verb and it is 'did'.

  • Did is used to make negative ( He did not see the match ) , interrogative ( Did you take rice ? ) and interrogative - negative sentence : Did they not come ?

  • When did is used as a helping verb, main verb's present form is always used. For Interrogative Sentence 'did' is always used first.


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