Formal:
* না (na): This is the most common and straightforward way to say no. It is used in formal situations and with strangers.
* হ্যাঁ, না (haan, na): This literally means "yes, no" and is used to emphasize a negative response, particularly when someone has already said "yes" to something.
Informal:
* না (na): This is also used in informal situations with friends and family.
* না করবো (na korbo): This means "I will not" and is more emphatic than simply saying "na."
* না চাই (na chai): This means "I don't want" and is used when declining something offered.
Other ways:
* আমি চাই না (ami chai na): This means "I don't want" and is a more polite way of declining something.
* এটা হবে না (eta hobe na): This means "This will not happen" and is used to express a strong negative response.
The best way to say no in Bengali depends on the specific situation and who you are talking to. It's always a good idea to consider the level of formality and choose the appropriate expression.