Formal:
* আমি দুঃখিত (ami dukkhito) - This is the most common and neutral way to say "I am sorry".
* আমি ক্ষমা চাই (ami kshomā chai) - This is a more formal way to say "I am sorry" and expresses a deeper sense of regret.
Informal:
* ক্ষমা করো (kshomā koro) - This is a more informal way to say "I am sorry", often used with friends and family.
* আমি ভুল করেছি (ami bhul korechi) - This means "I made a mistake" and implies that you are sorry for your actions.
Other options:
* আমার দোষ (amar dosh) - This means "It's my fault" and implies that you are taking responsibility for your actions.
* আমি খুব খারাপ লাগছে (ami khub kharap lagche) - This means "I feel very bad" and conveys your sadness and regret.
The best way to say "I am sorry" in Bengali depends on the context and your relationship with the person you are speaking to.