Have to vs. must?

[Alan]

Hi,

'Ought to' usually indicates another type of 'obligation'. This time it's a moral one. It's similar to 'should' and suggests it's the right and proper thing to do as in: You ought to respect your parents/You ought to set a good example to your children by the way you behave/You ought to pay your taxes and so on. It conveys the idea of duty.

Alan
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English as a Second Language
You can read my ESL story Phrasal Verbs/hold

[Mallinathan]

Dear Mr.Alan,
That was too fast. I have no words to express my happiness.

Thanks and best regards
Mallinathan

[Walaa89]

I think that we can use "must", when we are talking about rules that should be done...
walaa

[Dia_Nad]

Dear Torsten,

Firstly, I want to ask you if I may answer you at post reply.

Secondly I answered 9 out of 10 modal questions.

Thank for your reply.
Diana

[Baldcoco]

gosh golly,
i knew i was seeing things: i most not be afraid! i have to be strong and keep up with these tests. i wonder if there is a way to skip a bunch of them and take a comprehensive one... i am curious if i can speed up the process... i am swimming as fast as i can...

[Houssem224]

[Gray]

Hi,

I am confused over the use of 'should' here:

I should go now because I am already late for my class.

Is it correct grammatically? And if yes, how is it different from 'must' and 'have to'? I have read the previous posts explaining that 'should' is similar to 'ought to' but do you think that 'should' is far more polite than 'must' and 'have to' or 'ought to'?

~Gray
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I love words, sounds envy me.