Do you want to practise using 'must' and 'mustn't' in English? Play our grammar games and have fun while you learn.

Grammar Rule

Examples

I must do my homework.
You mustn’t be late for class.
We must wear our school uniform.

Remember!

We can use ‘must’ to talk about rules. For the negative, we can say ‘must not’ or ‘mustn’t’.
Parents must take care of their children.
You mustn’t shout in the library.
She must not forget her books.

Be careful!

The main verb is without ‘to’.
He must be careful when cutting food.
I mustn’t make a mess.

We say... We don’t say...

You must look both ways when crossing the road. (NOT You must to look both ways when crossing the road.)
We mustn’t run in school. (NOT We mustn’t to run in school.)
Children must respect their parents. (NOT Children must respecting their parents.)

Average: 
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Average: 3.6 (907 votes)

Comments

I think,it's no very easy.

it was simple

  • thre are very easy  games

 both were easy games i like both of them...I got 10/10 and 100.00%

easy and nice!!!!!!!!!

 It is very easy for me

first one was good! 10/10 :)
Second game was fine 97%

oh no i have 74%

It's really help full and simple to learn English so quickly.

 This type of practice is easy to learn english. 

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