concentraste

Concentraste is a verb-form encountered in Portuguese texts, generally understood as a variant spelling of the second-person singular pretérito perfeito do indicativo of the verb concentrar. The standard spelling for this tense is concentraste, meaning “you concentrated” or “you focused.” The form concentraste is typically regarded as a nonstandard variant or common misspelling that may arise from confusion with related forms or with other words such as concentrar, concentração, or the present-tense stem concentra.

Etymology and morphology: concentrar derives from the Latin prefix con- (together) and the root cent- (center), related to gathering or focusing attention. In Portuguese, the imperfect and past tenses share a common pattern across regular -ar verbs, with the second-person singular in the pretérito perfeito being formed as concentraste in standard spelling.

Usage notes: In formal writing and normative grammars, concentraste is discouraged in favor of concentraste. Writers may encounter concentraste in informal communication, typographical errors, or regional varieties, but it is not the accepted standard form in major dictionaries.

Relation to related terms: Concentrar (to concentrate), concentração (concentration), concentrado (concentrated; also a noun/adjective), and concentration in English are semantically linked to concentraste through the same verb family.

See also: concentrar, concentração, concentrado, concentration.

Concentraste itself is not treated as a separate lexical entry in standard Portuguese dictionaries; it is best viewed as a nonstandard variant of concentraste.