Chinese phrase
是我的错 shì wǒ de cuò
Meaning
It's my fault
When to use it
This expression says that the speaker is responsible. It gives a simple, informal apology to someone familiar.
Example dialogue
对不起，是我的错。 duì bù qǐ shì wǒ de cuò
I'm sorry, it's my fault.
没关系，别放在心上。 méi guān xì bié fàng zài xīn shàng
No problem, don't worry about it.