Ans:-
USE OF CAN
The use of can is as
follows:-
GENERAL POSSIBLITY
You can ski on the hills.
There is enough snow.
1)
We cannot bathe
here on account of sharks (it is unsafe).
2)
Can you get the
top of that mountain in one day? (it is impossible).
We might have noticed that
possibility / impossibility shown in the above sentences is not meant only for
one person but general public (for all). The factors making possible or
impossible are external.
ABILITY.
1)
She can speak
English.
2)
He can help you.
The ability or otherwise depends
upon the individual. The individual is capable or not capable of doing something.
PERMISSION:- Can I borrow
your car? Of course, you can. For orders:-
i)
This is awful
word. You cannot do it again.
ii)
You cannot go
there again.
iii)
You cannot leave
office early.
OFFER:-
I)
Can I help you?
II)
I can give you
this pen if you want.
Opportunity:-
(i)
You can catch the
07.30 train if you hurry.
USE OF “MAY”
In several cases the use
of “May” is just the same as “Can”
(a)
PERMISSION:-
(I)
May I borrow his
book?
(II)
Of course you
may.
(III)
Only the members
may play in the club.
(b)
OFFER:-
(I)
You may stay with
me.
(II)
May I help you?
© LIKELIHOOD:-
(I)
You may be right
here but I don’t agree with you.
(II)
You may be old
but that does not excuse you from this duty.
(III)
He has not
phoned. He may not know the number.
( D ) MAY AND CAN TOGETHER
(i)
We can have a
picnic but we may not ( We have the opportunity but we won’t take advantage of
it)
(ii)
We may have a
picnic but we can’t (it expressed likelihood but at the same time we don’t have
the permission.
USE OF “COULD”
(A)
It shows
permission in the past. For Example “I could use may father’s car whenever I like.
(B)
EXPRESS ABILITY
IN THE PAST:-
(I)
She could speak
English when she was six.
(II)
They could not
find the way home that night.
It may be denoted that
“could” is the past tense of “can” and “we” have seen in the above sentences
that I has been used for pas time, but now, let us discuss how we can use it
for other times.
1)
Could I borrow
your car next week (It shows permission, asking for permission for future).
2)
Could you hold he
door open for me (it is a request for present time).
3)
You could type
this for me now/tomorrow (it is an order for present time or future).
4)
Come early so we
could have a picnic (it is a suggestion for present / future ).
5)
There could be
lie on some of the planets (possibility for present / future).
USE OF “MIGHT”
“MIGH” is used to show
possibility. For example:-
(i)
Don’t tell him
anything, he might tell others.
(ii)
He might know
Asif’s address.
It may be noted that in
these sentences we can mean both present and future times. We can have some
more such examples; as
1-
He might be
waiting at the railway station.
2-
He might be doing
his home wok when we visit him at 9.00 to night.
SPECULATION ABOUT PAST:-
“He might have left for
Lahore.”
Here we guess or imagine
about his leaving for Lahore but we are not sure whether he left o not.
It can be used in
conditional sentences and shows a possible result. For Example:-
i)
If you poured hot
water into it, it might crack (for Future).
ii)
If you had left
if there, someone might have stolen (past).
USE O F”WOULD”
“Would” is used to express
a repeated action in the past. For example
When I was child, my
father would read me a story every night before going to bed. It means my
father used to read stories.
Would is used in soft
statements. For example:- I would like a cup of tea.
Here “I want” is strong
statement.
“Would” is used for
expressing performance. For example:- I would rather get a movie tonight then
to study grammar.
“Would” is also used to
expresses polite request.
i)
Would you mind
opening the window?
ii)
Perhaps you would
like to help me with this language.
iii)
Would you help me
please?
USE OF “SHOULD”
“Should” is used to
express advisability, when we advise some one. For example, you should loose
some weight. You should not leave you keys in the Car.
“Should” is used to
express an idea, e.g. (I should wait for him before I start this work).
“Should” is used for
obliging/obligation. E.g.(You should listen to you parents).
“Should” is used for
assumption, for example:- (Shahid should be in the department soon). (We assume
here that he will be in the department soon).
USE OF “MUST”
“Must” is used for
expressing necessity. For example:-
i)
All drivers must
have license.
ii)
I must not tell
anyone about this.
iii)
I must be at home
at night. I am expecting, an impotent telephone call at night.
USE OF “OUGHT”
“Ought” is used to express
advisability, for example:-
i)
You ought to
loose some weight.
ii)
You ought to
study harder.
