the future perfect
noun🔊/ðə ˌfjuːtʃə ˈpɜːfɪkt/
🔊/ðə ˌfjuːtʃər ˈpɜːrfɪkt/
(also the future perfect tense)
[singular] (the form of a verb that expresses an action completed before a particular point in the future, formed in English with will have or shall have and the past participle 将来完成时；将来完成式