Unidad 6

Unidad 6

1. Presente perfecto

   • Para acciones en el pasado que tienen efectos en el presente
   • Simple
     • Afirmativo
       • Sujeto + Have/Has + Verbo en participio
         • I have talked to Peter
     • Negativo
       • Sujeto + Have/Has + Not + Verbo en participio
         • She hasn’t gone to work
     • Interrogación
       • Have/Has + Sujeto + Verbo en participio
         • Have they learned English?
   • Continuo
     • Afirmativo
       • Sujeto + Have/Has + Been + Verbo con terminación-ing
         • They have been talking for three hours
     • Negativo
       • Sujeto + Have/Has + Not + Been + Verbo con terminación-ing
         • Don’t worry, I haven’t been waiting long
     • Interrogación
       • Have/Has + Sujeto + Been +Verbo con terminación -ing
   • Otros usos
     • Presente perfecto + Just
       • Acabar de
         • Beth has just moved to New York
     • Presente perfecto+ yet
       • Has the train arrived yet?
       • I haven’t eaten yet

2. Auxiliares de tiempo

   • For (por "x" cantidad de tiempo
     • They have lived in Paris for ten years
   • Since (desde hace "x" cantidad de tiempo
     • I have lived in Spain since April 2010
   • Ago (Hace "x" cantidad de tiempo
     • I called you ten minutes ago

3. Up to now (Hasta ahora)

   • Fortunately, everything has gone well up to now

4. Already (ya)

   • They have already finished their homework

5. Yet (Hasta ahora)

   • I’m really hungry. I haven’t eaten yet
   • Has the train arrived yet?

6. Still (Aún/Todavía)

   • I took two pills, but I still have a headache