Modal Verb

Modal Verb
can, could, may, might, will, would, shall, should, must

Examples of modal verbs

Here is a list of modals with examples:

Modal VerbExpressingExample
mustStrong obligationYou must stop when the traffic lights turn red.
logical conclusion / CertaintyHe must be very tired. He's been working all day long.
must notprohibitionYou must not smoke in the hospital.
canabilityI can swim.
permissionCan I use your phone please?
possibilitySmoking can cause cancer.
couldability in the pastWhen I was younger I could run fast.
polite permissionExcuse me, could I just say something?
possibilityIt could rain tomorrow!
maypermissionMay I use your phone please?
possibility, probabilityIt may rain tomorrow!
mightpolite permissionMight I suggest an idea?
possibility, probabilityI might go on holiday to Australia next year.
need notlack of necessity/absence of obligationI need not buy tomatoes. There are plenty of tomatoes in the fridge.
should/ought to50 % obligationI should / ought to see a doctor. I have a terrible headache.
adviceYou should / ought to revise your lessons
logical conclusionHe should / ought to be very tired. He's been working all day long.
had betteradvice    You 'd better revise your lessons



Would rather  – meaning: (would) prefer (PREFERENCE)
แปลว่า “น่าจะ….ดีกว่า” หรือแปลว่า “อยากจะ….มากกว่า”

POSITIVE: I’d rather be at home doing nothing than working without getting paid. (MEANING: (would) prefer – preference)

NEGATIVE: I‘d rather not eat out tonight, if you don’t mind.

QUESTION FORM: Would you rather watch an action film or a drama?

Had better – meaning: ought to / should (STRONG ADVICE, even THREAT)
ควร/ต้อง...ไม่งั้นจะ...เรามักใช้คำว่า had better เมื่อต้องการให้คำแนะนำหรือพูดถึงสิ่งที่ควรจะเป็น

POSITIVE: It’s getting late. I‘d better get going.

NEGATIVE: You’d better not forget your assignment. You’ll be in trouble if you do!

QUESTION FORM: Had I better speak to him now, or wait until things cool down a bit?

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