MUST
As we know Must is a Modal auxiliary verb that can be used in the following cases:
1. To express obligation or duty
You must do it now.
They must call in the
doctor.
She must submit her
fee today.
We must leave the
hall.
Generally, we use the
following formula to make sentences
Subject must +base form of the verb +object +….
2. Must also refers to laws and regulations.
- We must follow the traffic signals.
- People must remain
seated until the show is over.
- You must wear
a seatbelt when you are driving.
- Riders must use helmets .
3. To emphasize the necessity of
something
- Humans must have
drinking water at least every two days.
- You must give
up smoking.
- We must have a
special permit to hunt here.
- You must study
the first three chapters for exam.
- Plants must have
light and water to grow.
- You must drive carefully because the road is broken.
3. Deduction - Sure that something
is true (Certainty)
We use this when we don't know but we are
certain that it is true (based on evidence).
- Look at the mountains. It must be
really cold outside.
- The ground was wet this morning. It must have rained heavily.
- Sara will be angry; she must have forgotten her keys.
- He must be at home.
I heard a noise coming from his room.
4. A strong recommendation
Something that is highly recommended (stronger
than using should)
- We really must get
there at 5.p.m because the train leaves at 5.10
- If your nose bleeds every night, you must consult your doctor
- The Coffee here is superb. You must try some.
Mustn’t
The negative is Mustn't which
refers to prohibition (negative obligation)
Sometimes
Mustn't = Must not
- You mustn't use
your mobile while you are driving.
- You mustn't get
inform before you enjoy the trip..
- You must not disclose
it to anyone.
- We must not tell
anyone, it could be a rumor.
Must vs. Have to
Must can be replaced by Have to with little difference in
meaning:
·
You have to go (it
means Obligation) you must
go ( it means Strong obligation)
In the same way:
- He has to finish
the report by Wednesday. (He must finish the report by Wednesday)
- They have to rejoin
the club. (They must rejoin the club.)
Note : When we are
mentioning someone else's obligations, we use Have to.
- John has to quit
smoking.
- They have to complete the task.
0 Comments