1. ANOMALOUS / MODAL VERBS
MUST - CAN - COULD - MAY MIGHT - SHOULD - OUGHT TO

2. ANOMALOUS / MODAL VERBS
A dead right idea may come from a wacky man.

3. MUST HAD TO / MUST + HAVE + PARTICIPLE (past) MUST / HAS / HAVE TO (present) WILL HAVE TO (future)
OBLIGATION
Citizens must pay the income tax.
DEDUCTION
The MRI device didn’t work. There must be a flaw.
NECESSITY
I must see her at once.
PROHIBITION
Applicants must not cheat during the tests!

4. CAN / COULD COULD / WAS/WERE ABLE TO (past) CAN /AM/IS/ARE ABLE TO (present) WILL BE ABLE TO (future)
CAPACITY
You can definitely get into a reliable college.
could
REQUEST
Can you rephrase your question, please?
Could

5. MAY / MIGHT REQUEST May I leave class a bit earlier today? Might
POSSIBILITY
It may drizzle.
might
WISH
May your dreams come true!

6. SHOULD / OUGHT TO ADVICE You should look before you leap. ought to
NECESSITY
We really should work out.

7. Challenge! Fill in the blanks with the convenient anomalous/modal verbs:
You _______ be more considerate!
Citizens ________ respect the laws.
________ you pick up the phone, please?
It ______ rained in the middle of the night.
A blind person ________ not see the world.