【英语语法】Must and have to 的用法

Must and have to

• must 应该，
• have to 不得不这样做

** I/we/you/they have**	to do ,to work
he/she/it had	to go ,to wear

You can use must or have to when you say what you think is necessary , when your opinion（当你表达自己的观点时）

例句

It's fantastic film. You must see it. or You have to see it
When you are not going your personal opinion, use have (not must).Compare:

Jane won't be at work this afternoon. She has to the doctor .
(This is not my personal opinion - it is fact )
Jane isn't well. She has to go to the doctor, but l told her she must go.
(this my personal opinion)