Past Perfect Tense
Past perfect tense uses the auxiliary verb 'had.'
- I had called.
- You had listened.
- We had eaten.
- She had gone to bed.
Here we're discussing something that has happened in the past before something else happened. It sounds as if we are telling someone right now about something that had happened in the past. 'You had completed your homework' sounds as if your homework was finished before something else. In a way, it sounds as if this sentence could continue: 'You had completed your homework before bed.'
Future Perfect Tense
Future perfect tense uses 'will have' as part of the predicate, or action sequence in the sentence.
- I will have called.
- You will have listened.
- We will have eaten.
- We will have gone to bed.
When discussing future perfect tense, you are discussing something that will have been completed in the future, 'You will have completed your homework.' Similar to the past perfect tense, it sounds as if this sentence can continue: 'You will have completed your homework before school tomorrow.'
Negatives and Interrogatives
All of these sentences can also express the negative. For example, 'I have not called' is still an example of present perfect tense. These sentences can also be expressed as questions or interrogatives. For example, we could change the present perfect statement to a question: 'Have you listened?'