Theoretical grammar пәні бойынша

11. Verb. General
Grammatically the verb is the most complex part of speech. First of all it performs the central role in realizing predication - connection between situation in the utterance and reality. That is why the verb is of primary informative significance in an utterance. Besides, the verb possesses quite a lot of grammatical categories. Furthermore, within the class of verb various subclass divisions based on different principles of classification can befound.
Semantic features of the verb. The verb possesses the grammatical meaning of verbiality - the ability to denote a process developing in time. This meaning is inherent not only in the verbs denoting processes, but also in those denoting states, forms of existence, evaluations, etc.
Morphological features of the verb. The verb possesses the following grammatical categories: tense, aspect, voice, mood, person, number, finitude and phase. The common categories for finite and non-finite forms are voice, aspect, phase and finitude. The grammatical categories of the English verb find their expression in synthetical and analytical forms. The formative elements expressing these categories are grammatical affixes, inner inflexion and function words. Some categories have only synthetical forms (person, number), others - only analytical (voice). There are also categories expressed by both synthetical and analytical forms (mood, tense, aspect).
Syntactic features. The most universal syntactic feature of verbs is their ability to be modified by adverbs. The second important syntactic criterion is the ability of the verb to perform the syntactic function of the predicate. However, this criterion is not absolute because only finite forms can perform this function while non-finite forms can be used in any function but predicate. And finally, any verb in the form of the infinitive can be combined with a modal verb.

Words like to read, to live, to go, to jump are called verbs because of their following features.

1. they express the meanings of action and state;
2. they have the grammatical categories of person, number, tense, aspect, voice, mood, order and posteriority
most of which have their own grammatical means;
3. the function of verbs entirely depends on their forms: if they in finite form they fulfill only one function –
predicate. But if they are in non-finite form then they can fulfill any function in the sentence but predicate;
they may be part of the predicate;
4. verbs can combine actually with all the parts of speech, though they do not combine with articles, with
some pronouns. It is important to note that the combinability of verbs mostly depends on the syntactical
function of verbs in speech;
5. verbs have their own stem-building elements. They are:
postfixes: -fy (simplify, magnify, identify…)
-ize (realize, fertilize, standardize…)
-ate (activate, captivate…)
prefixes: re- (rewrite, restart, replant…)
mis- (misuse, misunderstand, misstate…)
un- (uncover, uncouple, uncrown…)
de- (depose, depress, derange…) and so on.