1. MODAL AUXILIARY VERBS By JESÚS HERRERO

3. DEFINITION

5. LIST OF MODAL VERBS

7. MODAL VERBS STRUCTURE

9. MODAL VERBS STRUCTURE 2. Modal verbs are used with infinitives without to (bare infinitives) with the exception of ought to : We must get there before 7 o'clock. She should study harder. I ought to go home now. ( Have to is studied with modal verbs but it's not a pure modal verb as it needs auxiliary verbs and has -s in the third person singular)

10. MODAL VERBS STRUCTURE 3. Modal verbs do not add -s or -es to the third person singular. They are invariable verbs. He can swim. He cans wim

13. GROUPS OF MODAL VERBS

15. NUMBER OF MEANINGS

17. GROUPS OF MODAL VERBS (a. number of meanings)

18. GROUPS OF MODAL VERBS (a. number of meanings)

19. GROUPS OF MODAL VERBS (a. number of meanings)

20. GROUPS OF MODAL VERBS (a. number of meanings)

21. MODAL MEANINGS

31. MODALS + PERFECT INFINITIVES

36. PRACTICE Click on this link to practice modal verbs: http://mimosa.pntic.mec.es/~jherre23/