This is the 3039th most frequent Korean word.
해요
"해요" means "do" or "does" in a polite form.
In this sentence, '해요' is the polite conjugated form of the verb '하다' (to do), indicating the action of exercising.
매일 아침 운동을 해요.
I exercise every morning.
Here, '해요' is used to express carrying out the action of washing dishes, maintaining the polite level of speech.
설거지를 해요.
I do the dishes.
Once again, '해요' represents the action of performing homework tasks.