poistun

Poistun is the first-person singular present indicative form of the Finnish intransitive verb poistua, meaning to leave, depart, or disappear. The verb can describe physically leaving a place, withdrawing from a situation, or something fading away.

In terms of conjugation, the present tense forms are: minä poistun, sinä poistut, hän poistuu, me poistumme, te poistutte, he poistuvat. The past tense forms (imperfect) are: minä poistuin, sinä poistuit, hän poistui, me poistuimme, te poistuitte, he poistuivat. The perfect form uses the auxiliary olla with the participle: olen poistunut, olet poistunut, hän on poistunut, olemme poistuneet, olette poistuneet, he ovat poistuneet. The negative form is en poistu, et poistu, ei poistu, emme poistu, ette poistu, eivät poistu.

Usage and nuance: poistua emphasizes leaving a place or stepping away from a situation, rather than simply going somewhere else. It can also mean to disappear or fade away, as in natural phenomena or abstract states. In everyday language, poets and journalists may use poistua to convey a calm, neutral progression of departure, while more common everyday alternatives for “to leave” include lähteä and mennä.

Examples: Minä poistun paikalta, kiitos. (I am leaving the scene, thank you.) Hän poistuu käytävältä. (He/she is leaving the corridor.) Me poistumme kaupungista huomenna. (We are leaving the city tomorrow.) Sum u poistuu vähitellen. (The fog is gradually disappearing.)

Related form: poistuminen is the noun meaning departure or disappearance, used for the act or process of leaving or fading away. Poistua is a native Finnish verb and is closely related to other verbs of leaving and transitioning. See also lähteä and erota for near but distinct senses of leaving or parting.