Present Perfect Tense

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• for something that started in the past and continues in the present

• Example: They have been married for nearly fifty years.

• when we are talking about our experience up to the present

• Example: I have played the guitar ever since I was a child.

Have you ever been to Japan?

No, I've never been to Japan.

• for something that happened in the past but is important in the present

• Example: I can't get in the house. I have lost my keys.

Time expressions used with present perfect simple

1) for
This gives a period of time.

Examples:
I've worked at this company for two years.

2) since
This gives a starting point.

Examples:
I've had this car since 2015.

3) just
This shows that something finished a short time ago.

Examples:
We've just eaten lunch.

4) already
This shows that something was finished earlier than expected.

Examples:
She's already gone home.

5) never
These expression means "not any time"n

Examples:
He has never called me.

6) yet
This is used for negatives and questions about situations that were expected to happen.

Examples:
Have you cooked dinner yet?

7) ever
These expression means "any time"

Examples:

Have you ever been to Korea?

​For Example:
V1 V2 V3
Speak Spoke Spoken
Walk Walked Walked