In grammar, the infinitive is a non-finite verb form that shares characteristics of a noun; generally not distinguished person, number, or time, although for example in Portuguese it conjugates according to person and number. It is suitable to express the idea of an action as a general notion, without specifying the particular circumstances ( how, when, what or who ).The abstract nature of the Act that evokes the infinitive explains that in many languages we find as input ( 41 motto; in the dictionary to group all conjugated forms covering the verb. For this reason it are also often in phrases where is says something in general about the Act in the infinitive.Spanish examples: love is poderEl to eat and scratch everything is empezarVer to creerDentro of the characteristics of the infinitive in the majority of languages, with some exceptions such as the Portuguese, can be listed: use the infinitive as verboide in the majority of cases.Fulfils the function of other lexical categories - generally of a noun - in sentences that are included, for example as subject of another verb.Not combined according to any subject, and in cases where the subject is present, does not present a case.They do not meet the role of declarative verb in cases in which are the only verb in the sentence.By lexicographical Convention, it is the verb considered as motto, name or unconjugated form of the verb, and is the usual initial way to refer to a verb or investigate their conjugations.Do not have time, mode, aspect, or voice.They are used with auxiliary verbs.However, not always the infinitive has all these features in one language in particular. The infinitives of the languages may have other features, including the absence of some of the features listed previously. In addition, there are languages without an infinitive strict, as the Japanese.