What is future perfect tense

How we use future perfect tense becomes clear when we compare future perfect tense with past perfect tense. The future perfect tense refers to actions that will complete before a certain point in the future, while the past perfect tense refers to actions that completed before a certain point in the past.

Structure of future perfect tense

With "will"

Structure
Subject + will + have + past participle (V3) + object

With "be going to"

Structure
Subject + am/is/are …

1. I / achieve / goals / by the end of the year

2. they / build / house / by next summer

3. he / complete / painting / by the end of the day

4. the train / leave / before 6 PM

5. we / arrive / by the time the movie starts