Past Perfect Tense

Past Perfect Tense expresses that the verbal action is completed in the past time.

Forms of verb
Past Participle form is used in Past Perfect Tense. This form is also called 3rd form. Past Participle shows the completion of verbal action. That’s why it is used with the Perfect tenses.

  • Past Participle, 3rd form (with all subjects)

Auxiliary
There is one auxiliary (helping verbs) used in the Present Perfect Tense. It is used with all of the subjects.

  • Had (with all subjects)

Negative
When a sentence is converted into negative then not is used with the auxiliaries. You can use the short form too in which not is used with auxiliary as one word. Below are some examples to make you understand.

  • Had not (hadn’t in short)

Interrogative
While making interrogative the auxiliaries are used at the beginning of sentence.

  • Had is used at the beginning of the sentence.

Examples

  • I had highlighted this problem to all. (Positive sentence)
  • You had not understood still. (Negative sentence)
  • Had they gone out? (Interrogative sentence)
  • He had made me believe. (Positive sentence)
  • She had not completed her home work. (Negative sentence)
  • Had he worked out the problem? (Interrogative sentence)