N3 Hypotheticals, Conditionals, and Regret

もし〜たなら: meaning, usage and examples

もし〜たなら means: if... (past hypothetical).

Updated 9 November 2026 · By the My Senpai team · Spotted a mistake? Tell us

Examples

1. もし日本にほんに来こなかったなら、日本語にほんごを勉強べんきょうしていなかったと思おもう。

   If I hadn't come to Japan, I would not have studied Japanese.

2. もしあの時とき、告白こくはくしていたなら、どうなっていたかな。

   If I had confessed my feelings at that time, I wonder what would have happened.

3. もし早はやく家いえを出でていたなら、間まに合あっただろう。

   If I had left home earlier, I would have made it in time.

4. もう宿題しゅくだいが終おわったなら、遊あそびに行いってもいいよ。

   If you've already finished your homework, you can go out and play.

When to use it

もし〜たなら sets up a condition about something that did or did not happen in the past: "if... had." It is used to imagine a different past (もしあの時とき会あわなかったなら) or to talk about a past action whose result you do not know yet: もし宿題しゅくだいが終おわったなら、遊あそびに行いっていいよ ("If you have finished your homework, you can go play").

Nuance

A little more formal and literary than たら; it sounds thoughtful in essays, songs, and reflective speech. For imagined outcomes, the result clause often ends with だろう, と思おもう, or かな.

Compare

もし〜たら is the everyday form: もし雨あめが降ふったら、中止ちゅうしです. なら without た responds to a topic: 行いくなら教おしえて. 〜たなら focuses on a completed fact, or on a past that could have been different. としたら adds the feeling of "suppose."

Tip: For an imagined past, end with ていただろう: もし知しっていたなら、手伝てつだっていただろう ("If I had known, I would have helped").

More on this in Japanese conditionals: tara, ba, nara and to.