I have to do the dusting. I have to clean my teeth. My father has to go to the work. My brother has to go to the dentist tomorrow. I have to do my homework.
I must go. You must not drop it. You must not touch the saw. I must do the cleaning. You must do it.
I have to clean my teeth.
My father has to go to the work.
My brother has to go to the dentist tomorrow.
I have to do my homework.
I must go.
You must not drop it.
You must not touch the saw.
I must do the cleaning.
You must do it.