Question

explain me the rule of modals

Answer 1

the verbs like could ,would ,ought, may , might ,would and shall is known as Modals

Answer 2

Modal auxiliaries are used along with main verbs. They are not used alone. Together with the main verb that follow the modal auxiliaries Express the mode or manner of actions denoted by the verb. They express such ideas as ability , possibility, probability, permission, obligation or duty etc.

Modal auxiliaries are :
Will , Shall , Would, Should, Can , Could , Must , May , Might , Need , Dare, Ought to , Used to , Has to , Have to , Had to .

Use of has to /have to :

★ Has to /Have to is used to show necessity or compulsion from without.

★ Questions and negatives are formed both ways with or without do -

=> Has to/Have to express necessity and obligations forced by external forces or circumstances.

Use of had to :

★Had to is used to Express necessity or obligations -

Use of Will :

★ With the second and third person will is used to express simple future.

★ Will with the first person is used :
a) To Express willingness or offer .

b) To Express intention or promise.

c) To Express threat :

d) To Express resolution:

e) To Express determination :

★ In interrogative sentences will is used with second person.

Use of shall :

★ Shall with the first person is used to express simple future.

★ Shall with the second and third person is used :

a) To Express a command.

b) To Express threaten

c) To Express a promise

★ To Express an offer or suggestion shall is used with the first person in Interrogative sentences.

Use of would :

Would is the past tense of will. It is used :

★ To Express the past tense of will or shall in indirect speech.

★ To Express a habitual activity in the past.

★ To make a polite request .

★ To Express a wish .

★ To express improbable or Unreal conditions.

Use of should :

Should is the past tense of shall ,it is used:

★ To denote in indirect speech the past tense of shall .

★ To Express duty Or advice.

★ To Express purpose.

★ To express probability .

Use of can :

Can is used in present, it is used for:

★ To Express ability :

★ To express permission :

★ To express possibility :

★ To express capacity of power :

Use of could :

Could is the past form of can , it is used for :

★ To Express ability or capacity in the past :

★ In indirect speech in the form of past of can.

★ To Express permission in the past :

★ To express polite request :

★ To Express possibility in the past :

Use of may :

May is used in the present for :

★ To Express formal permission .

★ To express wish ,prayer or blessings.

★ To Express possibility .

★ To express propose in the sentence of so thought when there is first form .

★ To Express past possibility :

Use of Might :

Might is the past form of may , it is used for :

★ To Express permission in past.

★ To Express possibility in the past.

★ To Express past wish .

★ To Express remote possibility in the future.

★ To Express purpose if Second form is used before so that.

Use of must :

★ To Express dire necessity :
.

★ To Express comparison of obligation :

★ To Express determination :

★ To Express duty :

★ To Express prohibition :

★ To express possibility :

Use of ought :

Ought is used in place of should. But it is necessary the use of 'to' with it. Ought is used :

★ To Express advice or suggestion :

★ To Express moral or social duty :

★ Ought to + have + V3 shows that the action had to be done but it didn't.

Use of used to :

★ Used to easy used to express past habitual actions.

★ To Express the location in the past.

Use of Need :
Need is a verb and a model too .

★ Asking for a need .

★ In Negative sentences .

Use of Dare :

★ In negative sentences.

★ In interrogative sentences ask a question about courage.