A verb is the type of word that can be modified to match the person, number, tense, manner, and appearance of the subject it speaks of. Originating from the Latin term verbum, the verb is the element of a sentence that gives the pattern of existence and describes an action or state that influences the subject. It is the core of a structure that can mark the division of subject and predicate.
Basically, we can say that a verb is one that indicates what action the grammatical subject of a sentence performs and that it can express moods, feelings, actions, attitudes or states. The verb can be indicated by a term that determines the action in the case of the active voice or as a complement in the case of the passive voice.
Verbs can be classified in several ways, such as: from the morphological point of view they can be regular or irregular, from the temporary duration of the actions, perfective or imperfect, depending on the contribution of meaning they offer, they can be copulative, semi- pulative, predicative, transitive, reciprocal, reflexive, intransitive, or pronominal; if they serve to support the meaning of other verbs, they are called auxiliaries.
To mention some definitions: transitive verbs are those that require the existence of a direct object to achieve a full meaning; the intransitive, however, need not be a direct object in the verbal conditional sentence; Irregular verbs have particular conjugations for primitive verb tenses such as the present of the indicative mood, the simple past perfect of the indicative and the simple future of the same form; Regular verbs are, however, those that respect the conjugation systems of the most used language to which they belong. Other types of verbs are personal, impersonal, third person, defective and copulative. The use of a verb within a sentence is called conjugation, in some languages verbs are always used in the infinitive and time is interpreted with the help of certain particles, in Spanish all verbs must be conjugated to know the real meaning they have. It is essential, therefore, that the verb adapts to the rest of the words so as not to collide in gender, person or number when faced with arguments or complements. If we analyze the Spanish language, for example, we will notice that it always agrees with the subject in number and in most cases in the person variable (with the exception of the so-called inclusive subject).
Those languages in which verbs are conjugated are called inflections. Each determines a type of conjugation pattern, which differs from one linguistic system to another. In Spanish, most verbs are regularly conjugated according to three established patterns based on the stem vowel. In our language, in order to carry out a correct conjugation of verbs, it is important to bear in mind that there are three persons in the singular (I-you-he/she) and another three persons in the plural (we-you/you). -they), some of these forms share conjugation particles (not in all cases), others do not. It is important to clarify that the moment in which the action occurs is one of the determinants of this conjugation.