Impugnar means to challenge or contest the validity or legality of something, often in a legal context. It is used when questioning the legitimacy of a decision, document, or action.
El Pretérito Imperfecto - used to describe regular and repeated actions that happened in the past
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| Pronoun | Conjugation |
|---|---|
| Yo | impugnaba |
| Tú | impugnabas |
| Él / Ella / Usted | impugnaba |
| Nosotros / Nosotras | impugnábamos |
| Vosotros / Vosotras | impugnabais |
| Ellos / Ellas / Ustedes | impugnaban |
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