GRAMMAR - Present Perfect Tense

PRESENT PERFECT TENSE

The present perfect tense is very common in English. It that occurred in the past but still has an impact on the present. In essence, the present perfect tense reveals that recently in the present as a consequence of events in the past.

Here are the formula of present perfect tense.

1. Positive sentence
    Subject + Has/Have + Verb 3 + Object

2. Negative sentence
    Subject + Has/Have + Not + Verb 3 + Object

3. Interrogative sentence

    Has / Have + Subject + Verb 3 + Object?

Note: We use have for subject they, we, I, and you and we use has for subject he, she, and it. 

Here are the examples.

• Positive sentence: They have gone to the market for three times.
• Negative sentence: I haven't see this teacher before
• Intterogative sentence: Have you known something called "volunteers"?

Negative before