El verbo copulativo (del latín copŭla: 'gancho', 'puente' o 'vínculo') es un tipo de verbo (en español, ser, estar o parecer) que algunas lenguas poseen para construir la llamada predicación nominal del sujeto de una oración: el sujeto se une con este verbo a un complemento obligatorio llamado atributo que por lo general determina alguna propiedad, estado o equivalencia del mismo, por ejemplo: "Este plato es bueno". "Juan está casado". "Ese fue el culpable". Forma las llamadas oraciones copulativas o atributivas.

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In linguistics, a copula (plural: copulas or copulae; abbreviated cop) is a word used to link the subject of a sentence with a predicate (a subject complement), such as the word is in the sentence "The sky is blue." The word copula derives from the Latin noun for a "link" or "tie" that connects two different things. A copula is often a verb or a verb-like word, though this is not universally the case. A verb that is a copula is sometimes called a copulative or copular verb. In English primary education grammar courses, a copula is often called a linking verb. In other languages, copulas show more resemblances to pronouns, as in Classical Chinese and Guarani, or may take the form of suffixes attached to a noun, as in Beja, Ket, and Inuit languages. Most languages have one main copula, although some (such as Spanish, Portuguese and Thai) have more than one, and some have . In the case of English, this is the verb to be. While the term copula is generally used to refer to such principal forms, it may also be used to refer to some other verbs with similar functions, like become, get, feel and seem in English (these may also be called "semi-copulas" or "pseudo-copulas").

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