Formal:
* ਮੈਨੂੰ ਮਾਫ਼ ਕਰੋ (Mainu maaf karo): This is the most formal way to say "I am sorry" and is suitable for elders or someone you are not close to.
Informal:
* ਮੈਨੂੰ ਮਾਫ਼ ਕਰੀਂ (Mainu maaf karin): This is a less formal way to say "I am sorry" and is suitable for friends or someone you are close to.
* ਮਾਫ਼ ਕਰਨਾ (Maaf karna): This is a more casual way to say "I am sorry" and is suitable for friends and family.
Other options:
* ਮੈਨੂੰ ਬਹੁਤ ਦੁੱਖ ਹੋਇਆ (Mainu bahut dukh hoya): This translates to "I am very sorry" and emphasizes the feeling of regret.
* ਮੈਨੂੰ ਮਾਫ਼ ਕਰ ਦੇ (Mainu maaf kar de): This is a more pleading way to say "I am sorry" and is often used when asking for forgiveness.
The best way to choose the right phrase is to consider the situation and the person you are talking to.