MUST (musieć, muszę)
- formy tej używamy, aby wyrazić konieczność, przymus który dyktowany jest z wewnątrz: I must do it for her.
- używamy Must kiedy jesteśmy pewni, że coś jest prawdziwe. 
You have been working all day. You must be tired. Pracowałeś cały dzień. Na pewno jesteś zmęczony. 

HAVE TO (musieć)
- Ten czasownik modalny wyraża konieczność narzuconą z zewnątrz (You have to do your homework every day.).

- Pomimo tego, zastępuje on must w przeczeniach, oraz w pytaniach w czasie przeszłym prostym i przyszłym:
You don't have to write it again.
Did you have to tell it to him?

Czas teraźniejszy

I have to work	I don't have to work	Do I have to work?
You have to work	You don't have to work	Do you have to work?
(He, she, it) has to work	(He, she, it) doesn't have to work	Does (he, she, it) have to work?
We have to work	We don't have to work	Do we have to work?
You have to work	You don't have to work	Do you have to work?
They have to work	They don't have to work	Do they have to work?

 

 

 

 

 

 

 

 

 

I must help you	I don't have to help you	Must I help you?
You must help me		Must you help me?
(He, she, it) must help me		Must (he, she, it) help me
We must help you		Must we help you?
You must help us		Must you help us?
They must help us		Must they help us?

 

 

 

 

 

 

 

 

 

 

   

  

1.	The police ……………….. block the streets two days ago.
2.	We are in a hurry. We  ……………… go.
3.	Sarah has a difficult test tomorrow. She ….…….……. study hard.
4.	We ……………….wait for Jim two hours yesterday.
5.	Martha  ………………. clean your room last weekend.
6.	Our parents  ………………. go to court tomorrow.