The future perfect progressive is a verb tense used to describe actions that will be ongoing until a specific point in the future. It emphasizes the duration of the action up to that future time. It is formed by using "will have been" followed by the present participle of the main verb, which typically ends in "-ing." For example, in the sentence "By next year, I will have been working at this job for ten years," the phrase "will have been working" indicates that the action of working will continue up until next year and emphasizes the length of time spent in that role. The future perfect progressive is useful for expressing future actions that are expected to be in progress for a certain duration before a specific future moment.

英語での「future perfect progressive」の定義と意味

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