Future perfect or continuous: Choose the right form
説明を見る前に、覚えていることを数語で書いてください。個人情報は含めないでください。
AIフィードバックと復習スケジュールを利用するにはサインインしてください
解説を表示
Both the future perfect simple and the future perfect progressive look ahead to a future reference point and evaluate earlier activity. The future perfect simple places a completed action, milestone, or quantity before that checkpoint. The future perfect progressive looks back from that same checkpoint to show how long an activity has been underway. One tense focuses on the finished product; the other focuses on the elapsed time of the process.
By opening time, we will have made twenty sandwiches.