Olly is preparing your space...
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Olly is preparing your space...
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El present perfect conecta el pasado con el presente: usa have o has más una forma cambiada del verbo para una experiencia sin un momento exacto o un resultado que sigue siendo cierto hoy. I have lost my keys significa que todavía no las encuentras.
Usa have con I, you, we, they, y has con he, she, it y cualquier sujeto singular. Después de have o has, el verbo cambia de forma: los verbos regulares añaden -ed (worked, visited), pero muchos verbos comunes son irregulares (seen, gone, eaten, written).
Nunca uses una palabra que dé un momento exacto, como yesterday o in 2019, con el present perfect; esas frases necesitan el pasado simple.
| Sujeto | Afirmativo | Negativo | Interrogativo |
|---|---|---|---|
| I / you / we / they | they have finished | they have not finished (haven't) | Have they finished …? |
| he / she / it | he has finished | he has not finished (hasn't) | Has he finished …? |
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