can roost
Verbo regular: roost - roosted- roosted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can roost
you can roost
he can roost
we can roost
you can roost
they can roost 	I can be roosting
you can be roosting
he can be roosting
we can be roosting
you can be roosting
they can be roosting	I can have roosted
you can have roosted
he can have roosted
we can have roosted
you can have roosted
they can have roosted	I can have been roosting
you can have been roosting
he can have been roosting
we can have been roosting
you can have been roosting
they can have been roosting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't roost
you can't roost
he can't roost
we can't roost
you can't roost
they can't roost 	I can't be roosting
you can't be roosting
he can't be roosting
we can't be roosting
you can't be roosting
they can't be roosting	I can't have roosted
you can't have roosted
he can't have roosted
we can't have roosted
you can't have roosted
they can't have roosted	I can't have been roosting
you can't have been roosting
he can't have been roosting
we can't have been roosting
you can't have been roosting
they can't have been roosting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I roost?
can you roost?
can he roost?
can we roost?
can you roost?
can they roost? 	can I be roosting?
can you be roosting?
can he be roosting?
can we be roosting?
can you be roosting?
can they be roosting? 	can I have roosted?
can you have roosted?
can he have roosted?
can we have roosted?
can you have roosted?
can they have roosted? 	can I have been roosting?
can you have been roosting?
can he have been roosting?
can we have been roosting?
can you have been roosting?
can they have been roosting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I roost?
can't you roost?
can't he roost?
can't we roost?
can't you roost?
can't they roost? 	can't I be roosting?
can't you be roosting?
can't he be roosting?
can't we be roosting?
can't you be roosting?
can't they be roosting? 	can't I have roosted?
can't you have roosted?
can't he have roosted?
can't we have roosted?
can't you have roosted?
can't they have roosted? 	can't I have been roosting?
can't you have been roosting?
can't he have been roosting?
can't we have been roosting?
can't you have been roosting?
can't they have been roosting?