Future Perfect - I "will have" done this...

Question 1

Use - how it’s used

Answer 1

The future perfect tense is used to describe what will have happened in the future before a different action takes place, or by a specific time.

“I will have…” + action

Question 2

AR/ER/IR

Answer 2

habré +
habrás + 
habrá +
habremos +
habrán +

…ado
…ido