Ensinei

Ensinei is the first-person singular form of the Portuguese verb ensinar in the pretérito perfeito simples (simple past). It translates to “I taught” in English and is used to indicate a completed action of teaching in the past. The form occurs only with the subject eu (I).

Morphology and conjugation: ensina is the verb stem for ensinar, a regular -ar verb. In the pretérito perfeito simples the endings are: eu ensinei, tu ensinaste, ele ensinou, nós ensinamos, vós ensinastes, eles ensinaram. The accent on ensinei signals the stressed syllable and distinguishes the first-person form from other tenses. Brazilian Portuguese and European Portuguese share the same basic pattern, though the tu and vós forms are more common in some regions than others.

Usage: Ensinei is used to describe a completed act of teaching. It often takes a direct object or a clause indicating what was taught, for example: “Eu ensinei matemática ontem” (I taught mathematics yesterday) or “Ela me ensinou a cozinhar” (She taught me how to cook). It can also appear in reported speech or narrative to place a past teaching action within a sequence of events.

Notes: Ensinei is a verb form rather than a noun or name. It is specific to the subject "eu" and does not occur with other subjects without changing the ending. Related forms come from the same verb, enseñar, and the broader family of Portuguese -ar verbs used to discuss past actions of teaching.