Japanese phrase
私のミスです。 watashi no mi su de su
Meaning
It was my mistake.
When to use it
A polite way to admit personal fault. It is common in everyday conversation when correcting an error and sounds responsible without being overly formal.
Example dialogue
すみません、私のミスです。 su mi ma se n watashi no mi su de su
Sorry, it was my mistake.
大丈夫です。気にしないでください。 dai jō bu de su ki ni shi na i de ku da sa i
It's okay. Please don't worry about it.