Non predicate verbs are used as adverbial distinctions, and non predicate verbs are used as subjects

Non-predicate verbs as subjects, note that not all non-predicate verbs can be subjects, present and past participles cannot be the subject, gerunds and infinitives can be the subject, and when they are the subject, they should be regarded as the third person singular. For example: playing basketball after school is good to us students

Another example: to see is to believe

The difference is that non-predicate verbs can have a noun function (such as verb infinitive and gerund), and act as subject, object, and predicate in a sentence.

Non-predicate verbs can have adjective functions (such as verb infinitives and participles) and act as definite, predicative, or object complements in sentences.

Non-predicate verbs can have adverbial functions (such as infinitives and participles) and act as adverbs in sentences.

The predicate verb acts as a predicate in the sentence and is limited by the personal and number of the subject; A non-predicate verb cannot be a predicate alone in a sentence, and it is not limited by the personal and number of the subject.

In English, you can't be a predicate of a sentence alone.

Non-predicate verbsThe definite sentence is: it is placed only before the noun, stating the performance or use of the noun, not showing the action, and the modified noun has no logical subject-verb relationship with the -ing form. Such as:

the doctor told me not to take sleeping pills.The doctor told me not to take sleeping pills.

Summary of non-predicate verb usage:There are four forms of non-predicate verbs: infinitive.

Geund, participle: present participle, past participle.

1. Infinitive (todo): to be the subject, object, and predicate.

Determinants, adverbials, and complements.

2. Gerund: as the subject, object, predicate, and definite.

3. Present participle (doing): to make predicates, predicates, adverbials and complements.

4. Past participle (done): to be a predicate, a definite, an adverbial and a complement.

Non-predicate verbs do adverbial usage induction:

1. Indicate time, condition, manner, concession or concomitant situation, usually using present or past participle. If the subject of the sentence is an active relation to the non-predicate verb, use the present participle; If the subject of the sentence is in a passive relationship with the non-predicate burning verb, use the passive form of the past participle or the present participle.

2. To express the purpose, it is usually necessary to use infinitive. The action ruler indicated by the infinitive of the purpose usually occurs after the predicate verb and is often used in the inorderto, soasto structure. Sometimes, infinitive phrases can be placed at the beginning of a sentence for emphasis.

Note: The infinitive adverbial can only be placed at the beginning of the sentence when it indicates the purpose.

3. To express the reason, it is usually a participle phrase, and it is mostly placed at the beginning of the sentence, sometimes at the end of the sentence, and separated by commas.

Note: An infinitive phrase can be followed by an adjective that expresses an emotion or emotional response (e.g., happy, glad, sorry, sad, surprised, frightened, delighted, disappointed).

4. To express the result, you can use an infinitive or a present participle. But there is a difference: the infinitive table result, whose action occurs after the predicate verb, sometimes indicates the unexpected or unpleasant, the infinitive precedes the epoch with only, and is also used for the ...... tooto，enoughto，neverto，such……ASTO and other fixed structures; The present participle denotes the result, which is a natural result (simultaneous occurrence) that accompanies the occurrence of the predicate verb.

Non-predicate verbsThe key to solving the problem is as follows:

1) Look at whether the non-predicate verb and its logical subject (i.e., the modifier) have a subject-verb or verb-object relationship.

2) Look at the temporal relationship between the non-predicate action and the predicate action, whether the two occur at the same time or whether the non-predicate action has been completed or has not yet occurred.

If there is an active relationship between the non-predicate verb and its logical subject:

If the action indicated by the non-predicate verb is in progress, doing is used.

If the action indicated by the non-predicate verb has not yet occurred, use to do.

If the non-predicate verb has a verb-object relationship with its logical subject:

The action indicated by the non-predicate verb is in progress, then beingdone is used.

If the action indicated by a non-predicate verb has been completed, it is done.

The action indicated by the non-predicate verb has not yet taken place is used to be done.

Common forms:It is relatively easy to make a non-predicate as a definite, and the common test is to make a definite after a noun. The most common form is the present participle.

Past participle, infinitive.

It is necessary to pay attention to the logical relationship between the modified word and the word.

A single participle is used as a definite sentence and placed before the modified word; The participle phrase is placed after the modified word.