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sostener

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to sustain

Follows model

tener Stem change e→ie + irregular yo

Tener means 'to have' or 'to hold.' The stem changes e→ie in stressed forms (tienes, tiene, tienen), and the yo form adds -g- (tengo). Compounds like mantener and contener follow the same pattern.

Conjugation

View endings (Guide)

Indicativo — Indicative

Subjuntivo — Subjunctive

Imperativo — Imperative

Formas impersonales

These are the non‑finite verb forms used in combinations and constructions.

  • Infinitivosostener
  • Infinitivo compuestohaber sostenido
  • Gerundiososteniendo
  • Gerundio compuestohabiendo sostenido
  • Participiosostenido

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