Japanese phrase
___はもうしません。 ___ wa mō shi ma se n
Meaning
I won't do ___ anymore.
When to use it
Says that someone will stop doing something. It often shows a firm promise after a mistake or warning.
Example dialogue
夜ふかししたの? yo fu ka shi shi ta no
Did you stay up late?
はい、夜ふかしはもうしません。 ha i yo fu ka shi wa mō shi ma se n
Yes, I won't stay up late anymore.