past perfect and future tenses

The past perfect action indict that…

On past action happened before another past action

Keyword for the past perfect

Already, up to that time, by then

Past perfect form

Subject + had + past participle

Past perfect question

Mode the auxiliary had before the subject

Past perfect negative

Add not after had

Past perfect progressive

Use had been + -ing form, describe an action that have been continually in progress up to a specific past time

When there’s after or before and the past perfect…

Could use the simple past

Future perfect tense

Indicate an action that will occur before or up to a future time or future action.

Keyword of the future perfect

By the time, by then, by « date »

Future perfect form

Subject + will have + past principle

Future perfect question

Move the auxiliary (will) before the subject

Future perfect negative

Add not between will and have

Future perfect Progressive

Use will have been + the -ing form to describe an action that would have been in progress up to a certain time in the future