Meaning
Expresses a suggestion to act together or the speaker's own decision to act.
Formation
- Group 1: the -i syllable shifts to the -o row plus う: 行きます → 行こう
- Group 2: ます → よう: 食べます → 食べよう
- Group 3: しよう, 来よう (koyou)
When to use it
- Core use
- Let's do it; I will do it
Example
週末は一緒に映画を見よう
Let's watch a film together this weekend.
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.