Formal function of non predicate verbs, what are the three forms of non predicate verbs?

infinitive: it took me 3 hours to fix my car

Now he is the student studying well

Excessive it was the pen bought by my father for example.

There are three forms of non-predicate verbs, namely infinitive, gerund, and participle.

Infinitive, present participle, past participle.

The three forms and usage of non-predicate verbs differ as follows:

Form: 1. Verb infinitive: (to) + do, with the characteristics of nouns, descriptive hall rounds, and adverbs.

2. Gerund: ving, gerund not only has some characteristics of verbs, but also has the syntactic function of nouns.

3. Present participle: -ing form, the present participle not only has some characteristics of verbs, but also has the syntactic functions of adjectives and adverbs. When used as a fixed burning key after a noun, the principle is:

The infinitive is used to indicate that the action has not yet occurred; -ing indicates that the action is in progress; The past participle is used to show that the action has taken place and at the same time it shows the passive meaning.

4. Past participle: A regular verb is composed of a verb primitive, ending -ed.

Usage differences: 1. The present participle is used to indicate the action that is being carried out now, as the active voice.

2. Past participles indicate actions that have been done or things that have been done, as passive voice.

3. The infinitive of the verb indicates the action that will take place.

Non-predicate verbs mainly include todo, doing, and done, and are used as follows:

1. The verb infinitive (to do) is used as a definite to indicate the future, which is equivalent to a definite clause with the infinitive as the predicate.

Example sentence: manybuildingsinthecityneedrepairing,buttheonethatistoberepairedfirstisthelibrary

Many buildings in the city need to be repaired, but the first thing to be repaired is the library.

2. The past participle (done) is used as a chain pure definite to indicate passive (transitive) or complete (intransitive). The composition is equivalent to a definite clause (passive), and sometimes it also indicates completion.

3. The present participle (doing) is used as a definite to indicate initiative (transitive) or ongoing (intransitive). When used as a definite clause, it is equivalent to a definite clause (active).

Example sentence: driving a car during the rush hour is tiring

Driving during rush hour is tireless.