"have to" and "must" both express obligation. But there is a subtle difference. "have to" expresses objective obligation and modal verb "must" expresses subjective obligation.
Watch this lesson to learn the explanation of this difference. You will learn the form of both "have to" and "must" as well as the difference in meaning an use. There are lots of example sentences to help you understand.
This lesson was presented by Andrew, a qualified native British English teacher with over 15 years experience of teaching English.
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Other videos:
Modal verb WOULD - https://www.youtube.com/watch?v=rN7e0nA14Tg&list=PL6BDo90oiwpTlACB2QbfkD-3l674WSWg1&index=2
Modal verb COULD - https://www.youtube.com/watch?v=fhR5pLeVzZk&list=PL6BDo90oiwpTlACB2QbfkD-3l674WSWg1&index=3
Modal verb SHOULD - https://www.youtube.com/watch?v=fAXistiCVK0&list=PL6BDo90oiwpTlACB2QbfkD-3l674WSWg1&index=5
Conditionals - https://www.youtube.com/watch?v=WPDpe_WuCS8&list=PL6BDo90oiwpQfYtR_YtNSnZ0ghrRqJ9xE&index=2
Andrew,
Crown Academy of English
https://www.crownacademyenglish.com
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https://www.youtube.com/user/CrownAcademyEnglish
Photo credits by FreeDigitalPhotos.net:
“Overworked” by marcolm
“Young Woman Yawning” by David Castillo Dominici