What is the difference between "must" and "have to"?

Solovey · Mon Nov 22, 2004 13:22 pm *What is the difference between "must" and "have to"?*

Test No. incompl/elem-7 "Modals", question 5

Do you ......... clean the house every day or every week?

(a) must
(b) have
(c) have to

Test No. incompl/elem-7 "Modals", answer 5

Do you have to clean the house every day or every week?

Correct answer: (c) have to

Your answer was: incorrect
Do you must clean the house every day or every week?
_________________________

Why it is so?

Solovey

Torsten · Mon Nov 22, 2004 15:33 pm *Must*

When we use the modal verb must in a question we don't need the auxiliary verb (help verb) do/does.

For example:
Must you speak so loudly? Can't you see I'm working?
_________________
Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

Lisa_Mard · Wed Jun 04, 2008 3:01 am *What is the difference between "must" and "have to"?*

"must" can not use "do"
and
"have to" can use "do"

Am i right??

Torsten · Wed Jun 04, 2008 11:59 am *What is the difference between "must" and "have to"?*

Yes Lisa, you are right.
_________________
Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

	ESL Forum \| English Teacher Explanations (ESL Tests)	All times are GMT + 2 Hours
Page 1 of 1