Progress is saved in this browser. Log in to keep it permanently and sync across devices.

JLPT N3 Grammar

ことにした

N3Purpose

N3 · Purpose · verb辞书形/ない形 + ことにした

Meaning

decided to

Structure

verb辞书形/ない形 + ことにした

Explanation

ことにした means the speaker made a decision.

Usage

It emphasizes that the decision came from oneself.

Example

健康のために、毎朝走ることにしました。

For my health, I decided to run every morning.

Common Mistake

For externally arranged decisions, use ことになった.

Memory Tip

Memorize “dictionary-form verb + ことにした” as one fixed chunk, then practice by replacing words in the example sentence. Learn the connection first, then the nuance.

Study Status

New

Mastery0%

Times Reviewed: 0

Last Reviewed: Never

Next Review: Not scheduled

Support the Author

If this grammar card helped you, consider buying the author a coffee.

Support Author