Definition: The future perfect tense is a verb tense used to describe actions that will be completed before a specific point in the future. It helps us express that something will have happened at a certain time in the future.
The future perfect tense can also be used in conditional statements or to express assumptions about the past in the future. - "If he studies hard, he will have passed the exam by the time results are announced."
The phrase "will have" indicates certainty about the completion of actions in the future. It is not used to express possibilities or uncertainties.
While there aren't specific idioms or phrasal verbs directly linked to the future perfect tense, understanding the concept of time in English can help with phrases like: - "Time flies" – meaning that time passes quickly, which can relate to how we perceive future events.
The future perfect tense is a way to express actions that will be completed before a certain point in the future. Remember to use "will have" plus the past participle of the verb to form this tense.