Question

present perfect tense of help​

Answer 1

Explanation:

Present Perfect Tense Examples

Has lived: She has lived here all her life.

Have written: They have written three letters already.

Have worked: I have worked here since I graduated school.

Has done: He has finished his homework.

Answer 2

Explanation:

Present Perfect Forms

The present perfect is formed using has/have + past participle. Questions are indicated by inverting the subject and has/have. Negatives are made with not.

Statement: You have seen that movie many times.

Question: Have you seen that movie many times?

Negative: You have not seen that movie many times.

Complete List of Present Perfect Forms

Present Perfect Uses

USE 1 Unspecified Time Before Now

present perfect unspecified time

We use the present perfect to say that an action happened at an unspecified time before now. The exact time is not important. You CANNOT use the present perfect with specific time expressions such as: yesterday, one year ago, last week, when I was a child, when I lived in Japan, at that moment, that day, one day, etc. We CAN use the present perfect with unspecific expressions such as: ever, never, once, many times, several times, before, so far, already, yet, etc.

Examples:

• I have seen that movie twenty times.
• I think I have met him once before.
• There have been many earthquakes in California.
• People have traveled to the Moon.
• People have not traveled to Mars.
• Have you read the book yet?
• Nobody has ever climbed that mountain.
• A: Has there ever been a war in the United States?
• B: Yes, there has been a war in the United States.