MODAL VERBS
作者：Maria Trinidad
1. POSSIBILITY /PROBABILITY/DEDUCTION
1.1. MAY
1.2. MIGHT
1.3. CAN
1.4. COULD
1.5. CAN'T
1.6. MUST
1.7. CAN 'T
2. REQUESTS
2.1. ASK FOR SOMETHING
2.1.1. CAN,COULD, MAY
2.2. ASK FOR PERMISSION
2.2.1. CAN,COULD,MAY
2.3. ASK SOMEONE TO DO SOMETHING
3. OFFERS
3.1. WILL
3.2. SHALL
3.3. CAN
3.4. COULD
3.5. WOULD
4. MODAL PERFECTS
4.1. COULD HAVE
4.2. NEEDN' T HAVE
5. ABILITY
5.1. CAN
5.2. COULD
6. PERMISSION
6.1. ASKING FOR PERMISSION
6.1.1. CAN
6.1.2. COULD
6.1.3. MAY
6.1.4. MIGHT
6.2. GIVING PERMISSION
6.2.1. CAN
6.2.2. MAY
6.3. TALKING ABOUT PERMISSION
6.3.1. CAN/CAN' T
6.3.2. COULD/COULDN'T
7. OBLIGATION AND....
7.1. NECESSITY
7.1.1. MUST
7.2. ADVICE
7.2.1. SHOULD
7.2.2. OUGHT TO