Meaning
Adds the meaning of a sudden or abrupt start to a verb stem.
Formation
- Drop ます and add 出す: 泣きます → 泣き出す
- Only about a sudden start; never in requests or plans
When to use it
- Core use
- Suddenly start doing
Example
子どもが急に泣き出しました
The child suddenly started crying.
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.