Meaning
Expresses a decision made by the speaker. It is often used when someone consciously chooses a new plan or habit.
Formation
- Dictionary form or ない + ことにする: 帰ることにします
- ことにしている describes a habit you set yourself
When to use it
- Core use
- Decide to do it myself
Example
今日は歩いて帰ることにします
Today I decide to walk home.
Important notes
- Pay attention to the word form before the construction and to the particles around it.
Common mistakes
- Do not translate the pattern word for word; first identify its function in the whole situation.