Question

what are the uses of future perfect tense? ​

Answer 1

Answer:

Function. The future perfect tense refers to a completed action in the future. When we use this tense we are projecting ourselves forward into the future and looking back at an action that will be completed some time later than now. It is most often used with a time expression.

Answer 2

Answer:

Explanation:The future perfect tense refers to a completed action in the future. When we use this tense we are projecting ourselves forward into the future and looking back at an action that will be completed some time later than now. It is most often used with a time expression.

1. We use the future perfect to say 'how long' for an action that starts before and continues up to another action or time in the future. Usually we need 'for'. We can also use the future perfect continuous here so we often use the future perfect simple with stative verbs. If we use 'when', we usually need the present simple.

2. We use the future perfect with a future time word, (and often with 'by') to talk about an action that will finish before a certain time in the future, but we don't know exactly when.

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