2. MODAL VERBS can / can’t have to / don’t have to

3. MODAL VERBS: can Subject Modal verbMain verbPhrase I you he she it we you they can go to sleep. drink some water. eat some food. do some exercise. Use the basic form of the main verbs after the modal verbs.

4. MODAL VERBS: can Statement Negation Question Mike cannot whistle MikeCan canwhistle can’t whistle ?

5. MODAL VERBS: can CAN is used to indicate the possession of an ABILITY. e.g. He can swim. (He knows how to swim)

6. MODAL VERBS: can CAN is used to indicate a present or future GENERAL POSSIBILITY. e.g. You can’t fly to the U.S.A. from Girona. (It is not possible to fly to the U.S.A. because there are regular flights from Girona)

7. MODAL VERBS: can CAN are also used to ask for & give PERMISSION. e.g. Can I speak to the patient just a few minutes? No, you can’t (You ask the doctor if he lets you speak to the patient)

8. MODAL VERBS: have to Subject Modal verbMain verbPhrase I, you we, they have to go to sleep. drink some water. he, she it has to eat some food. do some exercise. Use the basic form of the main verbs after the modal verbs.

9. MODAL VERBS: have to Statement Negation Question Mike doesn’t have tostudy have toDoes has tostudy study ? have toYou You/Mikehad to You/Mike You didn’t have to don’t have to Mike you/Mike youDo Did

10. MODAL VERBS: have to In the present we use MUST and HAVE TO to say that something is NECESSARY or OBLIGATORY. e.g. You must be home by 9 p.m. I have to work on Saturday morning.

11. MODAL VERBS: have to When referring to the past, we use only HAD TO. e.g. Danny had to go to work yesterday.

12. MODAL VERBS: have to In the negative they have different uses. MUSTN’T: prohibition. e.g. You mustn’t take photos. (It is prohibited to take photos) DON’T HAVE TO: absence of necessity. e.g. You don’t have to wear a white coat. (You don’t need to wear a coat)