Презентация на тему Modal Verbs

duty.
You must wear a helmet when riding a

motorcycle.( You have to wear a helmet.)
To express that it is necessary to do sth.
I must water the plants. (It's necessary.)
For positive logical assumptions. She must be an actress. I've seen her on TV. (I'm sure she's an actress.)

Paul can't be strangers. They've been next door neighbours

for years. ( I'm sure they aren't strangers.)

park your car near a bus stop. ( it is

forbidden to park there.)

is necessary to do sth ( especially when somebody else other

than the speaker has made the decision.) I have to stay late at work tomorrow. ( My boss told me to stay.)

lack of necessity. I don't have to / needn't do

the shopping. I've already done it. ( It isn't necessary for you to do it.)

for permission. Could /May /Might are more formal than can. Can

I go to the park? Could /may/Might I take next Monday off? ( Is it permitted for me to…?)

May is more formal than can. Of course you can

use the phone. You may leave your luggage here, sir. (You are allowed to…)

permission. May not is formal. f.E. I'm afraid you can't

stay late tonight. You mustn't watch TV after 9pm. You may not write in ink during the test. ( You aren't allowed to…)

something is possible or likely. f.E Tom could/ may /might

still be at school. ( It is possible that he is still at school.)