Action of Present Perfect | Uses of Present Perfect Tense

Definition:-

                  We use present perfect tense when we have a result in present of a past action.

                                                                              OR

                              When some action starts in past and  finishes in present. 

        

Formulas:-

·         Affirmative        :  Subject+has/have+verb(Past Participle form)+Object

·         Negative           :  Subject+has/have+not+verb(Past Participle form)+Object

·         Interrogative      : Has/have+Subject+verb(Past Participle form)+Object

·         InterroNegative : Hasn’t/haven’t+Subject+verb(Past Participle form)+Object

Short Forms:-

·         Has not = Hasn’t

·         Haven’t = Haven’t

Examples:-

·         I have completed my work.

·         He hasn’t come in the office.

·         Have Robert taught you English?

·         Haven’t Bill importuned?

                                                 Some Uses of Present Perfect

1-First Use:-

                    Present perfect can be used as a piece of information or news of few days/weeks ago. We don’t mention timing in this use. If we use, it will be changed in past simple tense.

Examples:-

·         We have enjoyed a lot on this picnic.

·         We have shifted in London.

2-Second Use(Gone To/Been To):-

                     Been to and Gone to can be used in Present perfect tense.  Been is used where a visit has been completed. Gone is used when the visit has not been completed.

Example:-

·         Robert has gone to London(He is still in London)

·         Robert has been to London (He was in London but now he is somewhere else).