Formal:
* 对不起 (duì bù qǐ) - This is the most common and general way to say "sorry". It is appropriate for most situations, from minor inconveniences to serious mistakes.
Informal:
* 抱歉 ( bào qiàn) - This is a more casual way to say "sorry". It is often used among friends and family.
* 不好意思 (bù hǎo yì si) - This literally means "not feeling embarrassed", and it can be used to express regret for causing inconvenience or trouble. It is a more apologetic and self-deprecating way of saying "sorry".
Other options:
* 没关系 (méi guān xi) - This literally means "it doesn't matter", and it can be used to apologize for a small mistake or to acknowledge someone else's apology.
* 我错了 (wǒ cuò le) - This literally means "I was wrong", and it is a more specific way to apologize for making a mistake.
The best way to pronounce these phrases is to listen to native speakers and practice saying them yourself. You can use online dictionaries or language learning apps to hear the correct pronunciation.