Chinese phrase
很抱歉，无法〜 hěn bào qiàn wú fǎ 〜
Meaning
sorry for being unable to ___
When to use it
A polite way to say that something cannot be done. It often expresses regret in formal or business situations before giving a reason or alternative.
Example dialogue
我们很抱歉，无法参加明天的会议。 wǒ men hěn bào qiàn wú fǎ cān jiā míng tiān de huì yì
We are sorry, but we are unable to attend tomorrow's meeting.
那能改到后天吗？ nà néng gǎi dào hòu tiān ma
Then can we move it to the day after tomorrow?