Verb

a verb, from the Latin verbum meaning word, is a word (part of speech) that conveys action (bring, read, walk, run, learn), or a state of being (exist, stand). In most languages, verbs are inflected (modified in form) to encode tense, aspect, mood and voice. A verb may also agree with the person, gender, and/or number of some of its arguments, such as its subject, or object

Verbal noun and verbal adjective

Main article: Non-finite verb

Most languages have a number of verbal nouns that describe the action of the verb. In Indo-European languages, there are several kinds of verbal nouns, including gerunds, infinitives, and supines. English has gerunds, such as seeing, and infinitives such as to see; they both can function as nouns; seeing is believing is roughly equivalent in meaning with to see is to believe. These terms are sometimes applied to verbal nouns of non-Indo-European languages.
In the Indo-European languages, verbal adjectives are generally called participles. English has an active participle, also called a present participle; and a passive participle, also called a past participle. The active participle of break is breaking, and the passive participle is broken. When used adjectivally, the active participle describes nouns that perform the action given in the verb, e.g. I heard the sound of breaking glass. The passive participle describes nouns that have been the object of the action of the verb, e.g. I saw the broken glass scattered across the floor.
Other languages have attributive verb forms with tense and aspect. This is especially common among verb-final languages, where attributive verb phrases act as relative clauses.

Computational verb

Main article: Computational verb theory

Computational verbs are abstraction of verbs in natural languages, they are mainly used by man-made machines, e.g., digital computers. They are used to model the actions or processes represented by the verbs in natural languages into mathematical formula via qualitative analysis of dynamic systems. There are only two most basic computational verbs known as BE and BECOME. All other computational verbs can be built based on these two computational verb. BE is a limit of BECOME with respect to time
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