requieren

Requirir is a Spanish verb meaning to need, require, or entail. In common usage it denotes something that is essential, necessary, or demanded in a given context. As a transitive verb, it takes a direct object: for example, “Esta tarea requiere paciencia” or “El contrato requiere la firma de ambas partes.” In more formal or technical language, requirir can also express obligation or necessity in a broader sense, such as procedures, resources, or conditions.

Etymology and classification: Requerir comes from the Latin requirere, through Old French and other Romance-language developments, and is cognate with words in other Romance languages that express need or demand. In Spanish, the word family includes the noun requisito (requirement) and the adjective re needful or necessary forms like necesario. The verb is commonly contrasted with necesitar (to need in a more everyday register) and exigir (to demand), with requerir tending to appear in administrative, legal, or technical contexts.

Conjugation and usage notes: Requerir is irregular in some tenses and moods. The present indicative third-person plural form is requieren (ellos requieren). Other forms include requieren, requieren, requiera, requerimos, and requerir in various tenses. A frequent impersonal construction is se requieren or se requiere, indicating a general necessity. While many speakers omit the preposition de after a requerir clause (requerir paciencia), some styles still use de in more formal or regionally influenced speech.

See also: necesitar, exigir, requisito, requesito. This term is typically more formal and technical than synonyms like necesitar, and it appears frequently in legal, administrative, and professional writing.