Formal:
* আমি দুঃখিত (ami dukkhito): This is the most common and general way to say "I'm sorry".
* আপনার কাছে ক্ষমা চাই (apnar kache khoma chai): This means "I beg your pardon" and is a more formal expression.
* আপনার জন্য দুঃখিত (apnar jonno dukkhito): This means "I'm sorry for you" and expresses empathy towards the other person.
Informal:
* মাফ করো (maf koro): This is a more casual and informal way to say "sorry".
* ক্ষমা করো (khoma koro): This is similar to "maf koro" and also informal.
* দুঃখিত (dukkhito): This is a shortened version of "ami dukkhito" and is commonly used in informal situations.
Other options:
* এটা আমার ভুল ছিল (eta amar bhul chilo): This means "It was my fault" and acknowledges responsibility for the situation.
* আমি ভুল করেছি (ami bhul korechi): This means "I made a mistake" and expresses regret for the action.
The best way to choose the appropriate expression depends on the situation and your relationship with the person you are talking to.