Japanese phrase
わたしのせいです。 wa ta shi no se i de su
Meaning
It's my fault.
When to use it
Takes responsibility for causing a problem. It is a direct but polite way to admit responsibility after a mistake, especially in everyday situations with family, friends, or teachers.
Example dialogue
プリントがぬれちゃったね。 pu ri n to ga nu re cha tta ne
The worksheets got wet.
ごめんなさい、わたしのせいです。 go me n na sa i wa ta shi no se i de su
I am sorry. It is my fault.