MODELS AND AUXILLIARIES

                MODELS AND AUXILLIARIES

AUXILIARY VERBS

MODELS AND AUXILLIARIES

These are known as helping verbs. They assist the main verb. Examples of auxiliary verbs (a) Be

(b) Have:  This is used in the formation of perfect tenses.

She has gone to Kenya.

I have visited my grandparents.

• Do: This is used in the formation of the negative and interrogative of the present simple and past simple.

She doesn’t need my help.

Did you complete reading the book?

• Can, could: Can is used to express ability and could is the past of can

I can drive.

They are also used in making requests. Can l use your pen briefly?

(e) Will, shall: These are used in making simple future tense.

Shall is used after I and we.

Will can be used after all subject pronouns including I and we.

We shall go on holiday next week.

I shall see you tomorrow.

He will buy all he needs.

They will have dinner with us.

The past for shall and will are should and would respectively.

• May, might: May is used to express permission. Might is the past of may

May I go out?

Yes, you may.

May is also used to show possibility.  She might come today.

• Must: This expresses compulsion when used. We must attend the meeting.
• Ought to: This suggests that one knows the right thing to do.

            Students ought to respect their teachers.

You ought to see a physician.

• Need: This is often used in the negative form – needn‟t         You needn‟t come if you are ill.
• Used to: This tells us about repeated actions in the past, but has now stopped.

They used to walk to school.