Perfect Modals

PERFECT MODALS

(MODALES COMPUESTOS (PERFECTOS) )

Los verbos modales pueden ir seguidos de infinitivos perfectos para hablar sobre el pasado.

Infinitivos compuestos;:

haber jugado                            haber visto

  (have played )                             ( have seen )

Possibility/ability
May/ might/ could     

Ex:  It may have worked : Pudo haber funcionado

Ex:   We might have seen him if we had arrived earlier

Ex: They could have seen him if we had arrived earlier

Certainty/ Impossibility

Must     can’t

Ex:She must have been very famous: Debe/debió haber sido muy famosa

Ex:They can’t have left:  No pueden/pudieron haberse marchado

Opinions in the past (Opinion, advice)

Should

They should have bought that car: Deberían haber comprado aquel coche.