substituí

Substituí is the first-person singular preterite indicative form of the Portuguese verb substituir, meaning I substituted or I replaced. It describes a completed action in the past in which the subject took the place of someone or something, or carried out a replacement in a role, position, or task. The infinitive is substituir, and the preterite forms include eu substituí, tu substituíste, ele substituiu, nós substituímos, vós substituísteis, eles substituíram.

Etymology and related forms: substituir comes from Latin substituere, formed from sub- (under, in place of) and statuere or stituere (to place, to set). The word entered Portuguese through the Latin-derived verb family and retains the sense of placing one thing in the place of another.

Usage considerations: Substituí is most common in narrative and reportive contexts to indicate a past substitution. It is a finite verb form, used with a subject in the first person. The corresponding nouns and related verbs include substituto (substitute) and substituição (substitution). In other persons or tenses, variations of substituir are used, but the meaning remains the act of replacing or standing in for someone or something.

Example: Eu substituí o jogador lesionado no segundo tempo. This illustrates replacing someone in a past event. Another example is: Durante a ausência do gerente, eu o substituí temporariamente.

See also: substituir, substituto, substituição.