could roost
Verbo regolare: roost - roosted- roosted

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could roost
you could roost
he could roost
we could roost
you could roost
they could roost 	I could be roosting
you could be roosting
he could be roosting
we could be roosting
you could be roosting
they could be roosting	I could have roosted
you could have roosted
he could have roosted
we could have roosted
you could have roosted
they could have roosted	I could have been roosting
you could have been roosting
he could have been roosting
we could have been roosting
you could have been roosting
they could have been roosting	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not roost
you could not roost
he could not roost
we could not roost
you could not roost
they could not roost 	I could not be roosting
you could not be roosting
he could not be roosting
we could not be roosting
you could not be roosting
they could not be roosting	I could not have roosted
you could not have roosted
he could not have roosted
we could not have roosted
you could not have roosted
they could not have roosted	I could not have been roosting
you could not have been roosting
he could not have been roosting
we could not have been roosting
you could not have been roosting
they could not have been roosting	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I roost?
could you roost?
could he roost?
could we roost?
could you roost?
could they roost? 	could I be roosting?
could you be roosting?
could he be roosting?
could we be roosting?
could you be roosting?
could they be roosting? 	could I have roosted?
could you have roosted?
could he have roosted?
could we have roosted?
could you have roosted?
could they have roosted? 	could I have been roosting?
could you have been roosting?
could he have been roosting?
could we have been roosting?
could you have been roosting?
could they have been roosting? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not roost?
could you not roost?
could he not roost?
could we not roost?
could you not roost?
could they not roost? 	could I not be roosting?
could you not be roosting?
could he not be roosting?
could we not be roosting?
could you not be roosting?
could they not be roosting? 	could I not have roosted?
could you not have roosted?
could he not have roosted?
could we not have roosted?
could you not have roosted?
could they not have roosted? 	could I not have been roosting?
could you not have been roosting?
could he not have been roosting?
could we not have been roosting?
could you not have been roosting?
could they not have been roosting?