permission ( ask politely) for question
we use this for ask people politely
/ could / can /may/
for these subjects
I , we
I ( can , could and may )o
we ( can and could)o
for exp
1- could I / we borrow your mobile phone ?
2- can I /we change this room ?
may I wake your brother because I late ?
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Request / favour
will/ would/can/could
for this subject
you
for example
could you give this papers to Ahmad mohammad ?
will you wash these dishes please ?
can you lend me some money ?
could you pick me up to your car ?
boy : will you marry me ?o
girl: would you die for me ?o
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Obligation (no chose )o
have to / must / have got to
rule and law made self same must
you have to fight the enemy
you must go to your room (father said)o
you have got to go to the school
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no obligation (have chose )o
dont / doesnt have to
you dont have to bring the towel to stay in the hotel
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prohibition ( can not do )o
must not
you must not drive and drive
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suggestion / advice
should / shouldnt
ought to / ought not to
you should / ought to drink milk before sleep
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Ability
can / could
I can play basketball
I could step on the high tower
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warring
Had better ------or
Had better not ---------or
I had better kill him or I will not a live
you had better not jump or you will broke your leg
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possibility
may / might
use this if you not sure
I may come to class tomorrow
may : before the verb
maybe : before the noun
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promise
will / shall
subject ----------to------object
I ---------to ----------you
will (all sub)o
shall ( I , we ) o
I will see you tomorrow
I shall meet you
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giving your personal opinion
lets / why dont
lets + inf
why + subject + inf
lets go to the cinema
why we dont go to the cinema
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preference
12.1
ing / noun
------------I prefer -------------------to
12.2
like ---------------- better than-------------o
12.3
would rather -------------than-----------o
I prefer black pen to green
I like sleeping better than work
I would rather die than marry you
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After study them you can test over there