Future perfect meanings and ongoing actions in Japanese

Level B2

Future perfect meanings and ongoing actions in Japanese

Japanese has no dedicated future-perfect tense: time expressions and the kind of action or state establish the future viewpoint. These examples distinguish a completed result, an activity still in progress, elapsed time and preparations made by a deadline. Use polite forms such as ます and です in professional exchanges or with people you do not know well; plain forms and contractions such as してる suit familiar conversation. ご確認になる and 来られる also show respect toward the person reviewing or visiting, beyond simply making the sentence ending polite.

貯める: saving up money

A completed result by then: 終わっている

未来の時点までには、完了後の状態。

An activity still in progress: まだ and ている

未来の時点も、まだ活動の進行を表す表現。

Counting time from the start of an activity

未来の時点までには、活動を始めて期間になる。

Having enough ready by a deadline: ておく

未来の時点までには、次の行動ができるだけの蓄積するものを蓄積する動詞のて形おく。

Future reference, resulting states and advance preparation

Japanese uses nonpast forms in future time clauses, as in “着く頃には” (“by around the time you arrive”) and “試験が終わる頃までには” (“by around the time the trial ends”); 頃 makes the reference approximate, while までには sets a deadline. The form ている can describe a resulting state in “最初のテストは一通り終わっている” (“the initial tests will be finished”) or an ongoing activity in “まだ新しいシステムのテストをしてる,” so do not automatically translate it as an English continuous form.

The endings と思います and でしょう present an expectation or prediction, rather than expressing completion themselves. For elapsed time, count from the beginning with “取り組み始めて半年になる” or “運用開始から一年になります”; these locate a six-month or one-year milestone without building an English-style future perfect continuous.

In “設備を買い替えられるだけのお金を貯めておくよ,” ておく expresses saving money in advance as preparation, and “データを集めておきます” similarly expresses gathering data in advance; these examples carry a preparation meaning beyond a neutral prediction of a future total. Use 貯める for saving money and 集める for gathering data, while a potential form plus だけの, as in “評価できるだけのデータ,” means enough of something to make the next action possible.

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