MODAL VERBS III: OBLIGATION. MUST/MUSTN'T/ HAVE TO,DON'T HAVE TO/ NEED TO

Expressing obligation in English is a communicative need. For that, we use imperatives and modal verbs: MUST/ MUSTN'T and pseudo-modal structures: HAVE TO, NEED TO. However, we have to pay special attention to the differences in meaning existing among them.

Let's work on that. Watch the following presentation and focus on the differences between the modal verbs included: 

Don't forget to double check the differences between: MUST, HAVE TO, NEED TO AND SHOULD:

MUST, MUSTN'T, HAVE TO, NEED TO, SHOULD. OBLIGATION. MODAL VERBS. JUANA MORAL'S ENGLISH SITE

MODAL VERBS I. CAN, COULD, MUST, SHOULD BASICS.

What do you know about modal verbs? 

A lot! You only have to pay attention to the following pics and practice to learn more about them.

This post explains the basics of modal verbs together with CAN/CAN'T COULD/COULDN'T , MUST and SHOULD.
Do the quizz after reading the presentation!!

Now , let us practice using activities in different levels: