could brush
Verbo regular: brush - brushed- brushed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could brush
you could brush
he could brush
we could brush
you could brush
they could brush 	I could be brushing
you could be brushing
he could be brushing
we could be brushing
you could be brushing
they could be brushing	I could have brushed
you could have brushed
he could have brushed
we could have brushed
you could have brushed
they could have brushed	I could have been brushing
you could have been brushing
he could have been brushing
we could have been brushing
you could have been brushing
they could have been brushing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't brush
you couldn't brush
he couldn't brush
we couldn't brush
you couldn't brush
they couldn't brush 	I couldn't be brushing
you couldn't be brushing
he couldn't be brushing
we couldn't be brushing
you couldn't be brushing
they couldn't be brushing	I couldn't have brushed
you couldn't have brushed
he couldn't have brushed
we couldn't have brushed
you couldn't have brushed
they couldn't have brushed	I couldn't have been brushing
you couldn't have been brushing
he couldn't have been brushing
we couldn't have been brushing
you couldn't have been brushing
they couldn't have been brushing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I brush?
could you brush?
could he brush?
could we brush?
could you brush?
could they brush? 	could I be brushing?
could you be brushing?
could he be brushing?
could we be brushing?
could you be brushing?
could they be brushing? 	could I have brushed?
could you have brushed?
could he have brushed?
could we have brushed?
could you have brushed?
could they have brushed? 	could I have been brushing?
could you have been brushing?
could he have been brushing?
could we have been brushing?
could you have been brushing?
could they have been brushing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I brush?
couldn't you brush?
couldn't he brush?
couldn't we brush?
couldn't you brush?
couldn't they brush? 	couldn't I be brushing?
couldn't you be brushing?
couldn't he be brushing?
couldn't we be brushing?
couldn't you be brushing?
couldn't they be brushing? 	couldn't I have brushed?
couldn't you have brushed?
couldn't he have brushed?
couldn't we have brushed?
couldn't you have brushed?
couldn't they have brushed? 	couldn't I have been brushing?
couldn't you have been brushing?
couldn't he have been brushing?
couldn't we have been brushing?
couldn't you have been brushing?
couldn't they have been brushing?