The verb

performance of an action (do, throw, run), existence (be), possession

(have), or state (know, love) of a subject.

instead of the infinitives in brackets.
1. Suddenly he (to grit)

his teeth in angry exasperation. Not only he (to omit) to leave his card; he (to forget) to tell them who he (to be). 2. It (to be) perfectly true that he never (to take) the slightest interest in his clothes, a suit off the peg always (to serve) him excellently, (to cover) him, (to keep) him warm without elegance. 3. It (to be) nine o'clock and we (to come) to her room two hours before, as we (to do) often on those winter evenings. 4. At once Helen (to smile) at me; yet I (to see) that it (to be) an effort for her to clear her mind of what (to go) before. 5. Gideon (to wake) early that morning possibly because the ringing of the fire alarm (to be) in his mind most of the night. 6. He (to graduate) from Queen’s College before he (to take) his master’s degree at Christ Church, Oxford. 7. “What he (to say)? Tell us! Tell us!” He (to tell) them what he (to say) and what the rector (to say) and, when he (to tell) them, all the fellows (to fling) their caps and (to cry): “Hurroo!” 8. When he (to come back) to his seat his manner (to change). He (to be) gentle and kindly. 9. He (to see) he (to be) already further out than he (to hope) to be at this hour. 10. By the time Fenella (to take off) her coat and skirt and (to put on) her flannel dressing-gown, grandma (to be) quite ready. 11. No sooner we (to put down) our glasses than the waiter (to refill) them. 12. Inquiring for her at tea-time Soames (to leam) that Fleur (to be out) in the car since two.

be expressed both by lexical means (modal verbs (may, can,

must, etc.) and modal words (perhaps, probably, etc.)).
The category of mood presents the interpretation of the action by the speaker from the point of view of its relation to reality.

It is a traditional division.

Indicative expressing real facts.
Imperative expressing

command, order, request.
Subjunctive expressing something desirable, problematic, unreal etc

The Imperative
Subjunctive I
Subjunctive II
The

Conditional Mood
The Suppositional mood

all the categories of the verb.
Semantically it’s a fact

mood.
It serves to present an action as a fact of reality. It’s the most objective of all the moods. It conveys minimum personal attitude to the fact:
Ex. Water consists of oxygen and hydrogen.
Indicative means "stating a fact." The indicative mood is a category of verb forms that we use to state facts.
Ex: "Joe plays outside." (The speaker thinks it's a fact.)
The Indicative has no special forms of expression – it is all the tenses in active and passive.

to action, which means that the speaker considers the action

as desirable. The use of the Imperative mood is restricted to only one communicative type of sentences - imperative sentences. Eg: "Go outside!" (This is a command.)
Has no person, number, tense, aspect, it’s limited to one type of sentence only.
– Usually a verb in the imperative sentences has no pronoun, but may be used in emotional speech. – e.g. You leave me alone!
The Imperative mood expresses a command or a request to perform an action addressed to somebody, but not the action itself. It doesn’t actually denote a specific action it has no tense category; the action always refers to the future.
The Imperative mood form coincides with the plain stem of the verb.
e.g. – Come here! Sit down

DO:
E.g. Don’t be a fool. Don’t worry.

Emphatic requests\commands:
E.g. Do come and stay with us. Do be quiet.

Commands and requests addressed to a second person.

The imperative mood is used only in imperative sentences and can’t be used in questions.

contradict reality. E.g. He gave orders that we be present.

2) Subjunctive II expresses synthetically and analytically an unreal action. E.g. I wish you were not late.

3) The Conditional mood expresses analytically depended unreality: the realization of the action depends on some condition, which may not be expressed. E.g. It would be good to be here.

4) The Suppositional mood expresses analytically a problematic action, not contradicting reality. The realization of the action may depend on certain circumstances. E.g. Should you meet him, tell him to come
The Suppositional and Subjunctive I almost coincide in meaning but differ in style and usage

comparison of such sentences as

"If he turns up tell

him to -wait for me" and
"Should he turn up tell him to wait for me“

shows that both the verbal forms present the action as hypothetical but differ in the degree of certainty which is higher in the case of Present Indefinite Indicative

in Modern English by the opposition: loves – is loved,

to love – to be loved, etc,
and it shows whether the object is the doer of the action or its object.
E. g. He opened the door. The door was opened (by him).
The active voice is unmarked, the passive is marked in form and meaning. Some forms of the active voice find no parallel in the passive Future Continuous, Present Perfect Continuous, Past Perfect Continuous, Future Perfect Continuous.

suggested:
1) the reflexive – he addressed himself
2) the reciprocal – they greeted

each other
3) the middle voice – the door opened.

used in Passive voice

form with or without the particle to:
The infinitive without “to”

is called bare infinitive ('do', 'be')
The infinitive with “to” is called full (marked) infinitive ('to do', 'to be')

The infinitive combines the properties of the verb with those of the noun, as a result it serves as the verbal name of a process.

To err is human, to forgive is divine.
object
He promised

to show us all of the island.
predicative
My advice for you is to visit a doctor.
attribute
There is nothing else to say
Adverbial modifier
It is too good a story to belive

properties of the verb with those of the noun and

gives the process the verbal name. In comparison with the infinitive the gerund reveals stronger substantive properties.

subject
Dancing is what she likes most.
object
I intend doing it tomorrow.
attribute
There

were cries of greeting from a dozen voices
Adverbial modifier
Tom considered before answering.

name.
It combines the properties of the verb with those of

the adjective and adverb.

Functions in the sentence
attribute
I felt a bitter envy towards two boys walking along the path.

the verb with those of the adjective.
The categorial meaning

of the past participle is qualifying: it gives some sort of qualification to the denoted process.

Functions in the sentence
attribute
You didn’t look so interested.