Useshould, ought to- to say what we think is right or correct, ar is a good idea in your opinion. This is not as strong asmust.
You should pay more attention. You shouldn't talk 50 much. - to give advice.
I think you shouJd study biology next year. - in the same way.Ought to /ought not to has the same meaning asshould /should not.
Usehad better - to say what we think someone should do. There is only one formhadbetter /'d better. The negative is
had better not.
You'd better wear your raincoat. It's going to rain. You'd better not wait too long. You'lI be late.
Useneed to - with the same meaning ashave to. Need to is not a modal verb.
You need towork harder. You don't need to cometomorrow
Do I need tobring my dictionary?
Need is a modal verb and has no third person form. It is mainly used in questions and negatives, and is
more formai in use.
Need J say morel He need not take the exam.1 Complete eachsentence withcanarcan't+the verbinbrackets. Use a form ofbe ab/e toif
can/can't is not possible.2 Complete the sentence withmust ormustn't. They are ali strange but true laws.
a In New Hampshire, USA, you .. .t\t4Sll:1.>t ..pick up seaweed from the beach.
b In Louisiana, USA, schoolchildren ca11their teachers SirorMa'am.
c In Canada you .. ...let a 11amaeat grass in a national park.
d In Italy, a man .. ... wear a skirt in public.
e In Illinois, USA, you ... use the' steering wheel when you drive a car.
f In Michigan, USA, people ... swear in front of women and children.
g In Baltimore, Maryland, USA, you take a lion into a cinema.
h In Kentucky, USA, everyone ... takeatleastonebathevery year.a That shelf is tOGhigh. I (reach)cal'l.llre.ach.
it.
b What's that noise? I (hear).
something.
c There's something wrong with this door. I (open) ..
................it.
d I'm rea11yhungry! I (take).
................my lunch break yet.e Sorry, I (come) ..
tomorrow. 1'11try and see you next week.
f I rea11ywant (use) .....
a computer properly.
g Don't push Harry in the water. He (swim)h I feel terrible. I (sleep) ..
....for the past couple of nights.c
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O3 Complete the sentence with mustn't, ardon't /doesn't have to.
a YouMusll'l.ll stand on the desk. You'l1 break it.
b We... take an umbrella. I'm sure it isn't going to rain.
c You.... put a stamp on this letter. It says FREEPOSTon it.
d We.. .. forget to take the presents with us when we go.
e In aur country children .... go to school on Saturday.
f YOU.. ......touch the balI. It's against the mIes...o
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