Level: beginner

The modal verbs are: 



We use modals to show if we believe something is certain, possible or impossible:

My keys must be in the car.
It might rain tomorrow.
That can't be Peter's coat. It's too small.

We also use them to do things like talk about ability, ask permission, and make requests and offers:

I can't swim.
May I ask a question?
Could I have some tea, please?
Would you like some help?

Modal verbs




Hello Sagir Patel
The simple gerund of the verb 'do' is 'doing'; its perfect gerund is 'having done'. As you can see, the perfect gerund is formed from 'having' + the past participle (3rd form) of the verb.
All the best
The LearnEnglish Team

This site is very good   for learning English especially pronunciation  

I studied enough but I'm really confused when I make a sentence to say.
I'm not sure when  I use should or have to or must.
So I want to know difference. Please help me.

For example,                                                                                                                  
1. We have to meet at 6 o'clock at the station.                                                           
2. You should get up early than before.                                 
3.  I'll have to look at my phone(Series 01 Episode 06)

I want to cancel this question. Could you tell me how i can that?

Hi Lina,
Do you mean you want to delete your comment? That's not something users can do and we don't normally do it for our visitors, but if you are sure you want it, I can delete it for you.
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Best wishes,
The LearnEnglish Team

the most excellent and helpful site for me.
thank you so much for all your kind.

hi sop

From my own lights e learning is  one of  best the way of learning english especially by surfing in this website

I'm a teacher of English .I really want to get more useful practice orally or written  to impove my knowledge .Please help.

Which one of these sentences is right :
-You have to do your H.W.
-You must do your H.W. and why?