نستخدم must عندما نعتقد أنه من الضروري أن نفعل شيئا ما .
The windows are very dirty . I must clean them
It's fantastic film . You must see it
We must go to the bank today .We haven't got any money
** نستخدم had to - وليس must - للحديث عن الماضي .
We had to go to the bank yesterday
I had to walk home last night .There were no buses
** عند النفي نستخدم ( mustn't ( = must not
* I mustn't do something تعني : من الضروري أن لا أفعله .
إنه الشيء الخطأ لتفعله .
I must hurry . I mustn't be late
I mustn't forget to phone Julia
= I must remember to phone her ( يجب أن أتذكر أن أتصل بها )
Be happy . You mustn't be sad = Don't be sad
You mustn't touch the pictures = Don't touch the pictures
** needn't = need not
* I needn't do something = ليس من الضروري أن أفعله أو لست
محتاجا أن أفعله .
I needn't clean the windows . They aren't very dirty
You needn't go to the bank today . I can give you some money
** يمكنك أيضا أن تقول ( don't need to ( = needn't
I don't need to clean the windows
You don't need to go to the bank today
*** قارن needn't و mustn't
You needn't go = You can stay here if you want
You mustn't go . You must stay here