Meaning
のに after a dictionary-form verb and に after a noun introduce purpose, time, or cost; this is distinct from concessive のに.
Formation
- Dictionary form + のに + 使う / 要る / 便利だ / かかる: 運ぶのに使います
- A noun takes に: 掃除に使います
When to use it
- Core use
- Marks purpose and the resources an action requires
Example
このかばんは絵を運ぶのに使います
This bag is used for carrying paintings.
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.