MODAL VERBS

MODAL VERBS

1. PERMISSION

   • CAN+S+ VERB?
   • AM/IS/ARE ALLOWED TO+ VERB
   • SHALL+ I/WE

2. POSSIBILITY

   • CAN+ VERB

3. NECESSITY

   • NEED TO+VERB
   • IT IS NECESSARY TO+ VERB
   • LACK OF NECESSITY
     • NEEDN´T+ VERB
       • NOT NECESSARY TO+ VERB

4. PROHIBITION

   • MUSTN´T+ VERB
   • CAN´T+ VERB
   • NOT ALLOWED TO+ VERB

5. PROBABILITY

   • MAY/MIGHT + VERB

6. OBLIGATION

   • MUST+ VERB
   • HAVE TO/HAS TO+ VERB

7. ADVICE/SUGGESTION

   • SHOULD+ VERB
     • OUGHT TO+ VERB
       • SHOULDN´T + VERB

8. ABILITY

   • AM/IS/ARE ABLE TO+ VERB
   • CAN+ VERB

9. CERTAINTY

   • S+MUST+VERB

10. PREFERENCE

    • HAD BETTER+ VERB