What's the simple past form of 'must'?

[Admira]

hi Torsten
i just finished exercise modal verbs i have scored 10 out 10 after i repeated once
i wasn't clear about this sentence;
I COULD HAVE BOUGHT THAT CAR BUT I DIDN'T HAVE ENOUGH MONEY TO PAY FOR THE PETROL,
my answer was HAD,because the verb had it's past tense ,and you have used modal verb could (past tense) that's way i was sure had was the right answer,it will be great if you give me some examples to clear me out please.
,you have asked me if i know what are modal verbs?
to be honest i didn't knew it,i search and i find out what are they.
modal verbs are helper verbs that are used to change the grammatical mood of a sentence.they are; can may will shall in present tense,and ;should would might could must in past tense
thank you for every lesson you have sended to me,it's great to learn English and great to learn grammar too
yours sincerely admira
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To be or not to be ,that is the question.

[Hamidullah]

Dear teacher,
I have much problem using "of" in the sentences i only know that "of" the possession of something or someone but it dose not give me complete sense.

[Mehraban]

OK
I think it was not a simple test. Or better to say it was not a simple test for me. my score is 7 from 10. I will repeat it next time.
:)

[Lal]

Sir
Could you tell me whether the followiing sentences are correct or wrong?
1) What I wanted to know is ------.
2) What I wanted to know was------
My question is in the above uncompleted statements - the part of 'be' should be past or present.
Thank you.
Lal

[Mitra584]

Dear Torsten
I have answered 10 questions out of 10 correctly
about MODAL VERBS
regards
Mitra
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Peace&Love

[Tree0211]

Dear Mr.Torsten
And good afternoon everyone.
I feel very exciting when i read all of your comments in this site. It's useful for me to know more about "must and have to" and other interesting things.
I'm looking forward to receiving next lesson.

[Narotam]

can I get some more exemples of must and had to, so I can understand it more clearly. :D

[Farida]

HI MR. TORSTEN HOW ARE YOU
I WANT TO TELL U THAT I GOT LESSON 6 BUT IN THAT AUDIO SESSION IS SHOWING ERROR PLEASE DO SOMETHING FOR ME.I WANT TO LISTEN THAT.
THANK YOU

[Younessmira]

helloo
i don't khow how can i use the listening courses
can you show me please
and thanks for everything so much

[Mona Salah]

hi every one
thank you now i know the difference between must and had to but i don't know the difference between must and have to

[Shikha Mishra]

Thanks for you ans

[Elsadigyabob]

Dear dr. :Torsten
I'm Elsadig M.
I'm very happy to found lesson six because it learned me how to use 'must' and 'have'.
In last test I got seven marke of ten.
When I used 'hade to' and 'have to'
Many thanks great Coach

[Elsadigyabob]

Dear dr. :Torsten
I'm Elsadig M.
I'm very happy to find lesson siax becauese it helpe me how to use 'have' and 'must' but give me more simple about 'had to'
On last test I got seven marke of ten.
Many thanks great Coach

[Nekit]

Must is allowed to use in the past, but only in the reported speech. If I am not mistaken, If I am, fix me :)

[Tkr]

thanks for the lessons , they are really interesting and even making students like me also active.