Toform an affirmative (positive) sentence in the Future Perfect, we use the following rule: We put the subject first. After the subject, we put the future form of the verb to have - will have. Then we put the third form of the main verb. Then we can add the rest of the sentence if required. Task Use the verbs in brackets to make the Future Perfect (this exercise includes positive, negative, Yes/‌No, or Wh-question form). Future Perfect vs. Future Continuous FuturePerfect games. EnglishClub : Learn English : Grammar : Verbs : Tense : Tenses : Future Perfect. We make the Future Perfect with the auxiliary verb HAVE. The structure is subject + HAVE + main verb past participle (V3). We use the Future Perfect to expresses an action in the future before another action in the future. Jiv3P7o.