The perfect tense of verbs describe an action that has, was, or will have been completed. They are formed by “to have” verb plus the past participle of the verb.
Following are the three main perfect tense forms.
Present Perfect Tense
Present perfect tense shows an action that was completed at a time in the past or began in the past and continues to happen. It uses “has” or “have” plus the past participle form.
Example: They have finished the game.
Past Perfect Tense
Past perfect tense shows an action that was complete in the past. It describes an action that had happened before something else. It uses “had” plus the past participle form.
Example: I had eaten breakfast by the time you arrived.
Future Perfect Tense
Future perfect tense shows an action that will have happened by a certain point in the future. It uses “will have” plus the past participle form.
Example: She will have eaten blueberries before dinner.
