PRESENT PERFECT

1.- Structure c) Interrogative sentences

To form the interrogative form of any other verb in the Present perfect  you need to change the order of the auxiliary verb To Have + the subject + the past participle of the verb you want to use, no matter if that verb is regular or irregular. Look at the examples:

- Peter has driven my new car==> Has Peter driven your new car?

- Sam has talked to her==> Has Sam talked to her?

- The detective has solved the mistery ==> Has the detective solved the mistery?

- They have won the match ==> Have they won the match?

 

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