English part-of-speech abbreviations

n = noun, abbreviation of noun

u = uncountable noun, abbreviation of uncountable noun

c = Countable noun, abbreviation of countable noun

v = verb, abbreviation of verb

vi = intransitive verb, abbreviation of intransitive verb

vt = and object verb, abbreviation of transitive verb

aux.v = auxiliary verb, abbreviation of auxiliary verb

m.v = modal verb, abbreviation of model verb

conj = connection Word, abbreviation of conjunction

Non-predicate verb

The verb form that serves as a sentence component other than the predicate in a sentence is called a non-predicate verb. Non-predicate verbs are divided into three forms: infinitive, gerund, and participle (participles include present participle and past participle).

1. Infinitive

Tense\Voice Active Passive

Common form to do to be done

Perfect form to have done　to have been done

2. Gerund

Tense\Voice Active Passive

Common form doing　being done

Complete Formula having done having been done

For the above content, please refer to: Baidu Encyclopedia - Verb