Bob no te oye porque debe de estar escuchando música.
Bob can't hear you because he ... music.
- must be listening to
- musts be listening to
- must be listening
El gato no puede haber roto ese espejo.
The cat ... that mirror.
- can't have broken
- can't has broken
- can't have broke
Tom debe de haberlos ayudado porque sabe alemán.
Tom ... them because he can speak German.
- must have helped
- must has helped
- must have help
Debo de haberme dejado el paraguas en el autobús.
I ... my umbrella on the bus.
- must have left
- must have leave
- can have left
El preso debió de escapar por esa ventana porque está rota.
The prisoner ... through that window because it's broken.
- must have escaped
- must has escaped
- can have escaped
No puedes haber visto una serpiente porque no hay en esta región.
You ... a snake because there aren't any in this region.
- can't have seen
- can't have saw
- mustn't have seen
Él ya ha acabado. Debió de empezar muy temprano.
He has already finished. He ... very early.
- must have started
- must has started
- must have start
Si no contestó al teléfono, debía de estar en el jardín.
If he didn't answer the phone, he ... in the garden.
- must have been
- must has been
- must have be
Dejé la bicicleta aquí así que alguien ha debido robarla.
I left my bicycle here, so someone ... it.
- must have stolen
- must has stolen
- must have robbed
No pudo ir andando desde aquí al colegio en diez minutos. No es posible.
He ... from here to school in ten minutes. It isn't possible.
- can't have walked
- can't has walked
- couldn't walk
