Chinese phrase
很抱歉，我去不了 hěn bào qiàn wǒ qù bù liǎo
Meaning
I am sorry I cannot go
When to use it
A polite apology for being unable to go. It is used to decline an invitation or explain an absence, and it softens the refusal with a regretful tone.
Example dialogue
这周末有空吗？一起去看电影吧。 zhè zhōu mò yǒu kòng ma yì qǐ qù kàn diàn yǐng ba
Are you free this weekend? Let's go see a movie together.
很抱歉，我去不了，我这周有个培训。 hěn bào qiàn wǒ qù bù liǎo wǒ zhè zhōu yǒu gè péi xùn
I'm sorry, I won't be able to go. I have a training session this week.