present perfect

present perfect

1. We use it for actions in the past that are important in the present.

2. the auxiliary verb "to have" is used in the present and the past participle of the verb.

3. Subject + auxiliary verb (to have) + past participle ...

   • Affirmative sentences

4. Subject + auxiliary verb (to have) + "not" + past participle

   • Negative sentences

5. Auxiliary verb (to have) + subject + past participle ...?

6. Interrogative sentences

7. it is used as auxiliary have / has

8. grammar structure have / has + past participle of the verb

9. prepositions are used as

   • YET ,ONLY, EVER ,ALREADY