Perfect Verb Tenses

A perfect verb tense indicates an action that has been completed at some point in time. It often uses the auxiliary verb 'have' or 'had'.

1. Present Perfect: indicates an action that happened at an unspecified time. 2. Past Perfect: indicates an action that was completed before another action in the past. 3. Future Perfect: indicates an action that will be completed before a specified time in the future.

The structure is: Subject + has/have + past participle (e.g., I have eaten).

The structure is: Subject + had + past participle (e.g., She had finished).

The structure is: Subject + will have + past participle (e.g., They will have completed).

I have visited the museum.

He had read the book before the meeting.

By next year, I will have graduated.

A past participle is a verb form used in perfect tenses, often ending in -ed for regular verbs (e.g., walked, jumped).

Use 'had' followed by the past participle of the verb.