Celta assignment 2 focusing on M/F/P/A

GRAMMAR:

I have to sleep because I am very tired.

MEANING: In this sentence have to is used to express the necessity of going to bed.

We can use have + infinitive to talk about obligation. The meaning is quite similar to must. Have (got) + infinitive can also be used, like must, to express certainty.1
In general, have to expresses impersonal obligation. The subject of have to is obliged or forced to act by a separate, external power (for example, the Law or school rules). Have to is objective.
Examples:

In France, you have to drive on the right.
In England, most schoolchildren have to wear a uniform.
John has to wear a tie at work.2

CCQs:

Do I need to sleep? (Yes)
Why do I need to sleep? (Because I feel tired)
Is it necessary that I go to sleep? (Yes)
Are we talking about the past? (No)

FORM

Have + infinitive

I have to sleep

Have to is often grouped with modal auxiliary verbs for convenience, but in fact it is not a modal verb. It is not even an auxiliary verb. In the have to structure, "have" is a main verb. The structure is:3 subject + have + infinitive (with to)
Examples in the simple tense:

subject auxiliary verb main verb have infinitive (with to)

+
She

has to work. -
I
do not have to see the doctor.
?
Did you have to go to school?

In informal speaking and writing we use the contraction ‘ve after pronouns in affirmative in affirmative sentences (e.g. I’ve to sleep)

PRONUNCIATION

I have to sleep

/həv tə sliːp/4

Sentence stress: This is placed on the verb have and on the verb sleep.
The teacher needs to show linking between have and to, and to help with the pronunciation of “sleep”.

APPROPRIACY

Informal, in this case it can be used when you are talking with somebody you know.

Anticipated problems and solutions

Problem (Meaning): Students might use another modal verb like must or need.
Solution: Use the concept questions to reinforce the meaning.

Problem