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computer.
Group 2
In this construction, the infinitive is used after the verbs "want, would like,
require, rely on, count on, expect, consider, find".
I want you to do something for me.
We expected Mike to be present at the meeting.
Note the use of the passive infinitive in those cases where the person indicated
in the object undergoes the action of the infinitive (i.e., that person does not perform
the action himself / herself).
She wants him to be elected.
I would like him to be invited to the party.
Group 3
In this construction, the infinitive without "to" is used after the verbs of sense
perception "hear, see, watch, observe, notice, feel".
I saw him cross the street.
I watched him plant the roses.
The present participle is used instead of the infinitive in such constructions to
stress that the action is in progress. For example: I saw him crossing the street. I
heard her singing.
Group 4
This construction with the verbs "have" and "get" has causative meaning, i.e.,
"have" and "get" here generally mean "induce someone to do something; ensure that
someone does something", with "have" close in meaning to "ask" and "get" close in
meaning to "persuade". The infinitive is used without the particle "to" after "have",
but with "to" after "get".
Have him send the letters.
I had my sister watch the baby while I was out.
The past participle is used after the verbs "have" and "get" in constructions like
"I had my car washed" which indicate that the action is performed for you by
someone.

Infinitives after passive verb forms

Many verbs can be used in the passive voice with the infinitive in the function
of an object after them.

The infinitive is used after the passive forms of the verbs "allow, permit, ask,
tell, order, force, advise, warn, encourage". Compare active and passive
constructions:
She allowed us to go there. – We were allowed to go there.
He advised her to find a good lawyer. – She was advised to find a good lawyer.
The infinitive is used after the passive forms of the verbs "say, report, expect,
suppose, allege, believe, know".
Prices are expected to rise even higher.
He is believed to be the oldest person in the country.
Such constructions containing simple, continuous, perfect, or passive forms of

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