is this sentense right ?

Is it right to write ” I suppose to do sth.” as the same meaning as  ” I expect to do sth.” ? If it’s wrong, how to correctly use the word “suppose”

Hi! “Suppose” means “guess” or “think,” as in, “I suppose I should do the dishes.” Don’t confuse “suppose” with “supposed to.” If you say “I am supposed to study tonight, but I don’t want to” it means you have an obligation to do something, or need to do it.Amy