can grey
Verbo regular: grey - greyed- greyed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can grey
you can grey
he can grey
we can grey
you can grey
they can grey 	I can be greying
you can be greying
he can be greying
we can be greying
you can be greying
they can be greying	I can have greyed
you can have greyed
he can have greyed
we can have greyed
you can have greyed
they can have greyed	I can have been greying
you can have been greying
he can have been greying
we can have been greying
you can have been greying
they can have been greying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't grey
you can't grey
he can't grey
we can't grey
you can't grey
they can't grey 	I can't be greying
you can't be greying
he can't be greying
we can't be greying
you can't be greying
they can't be greying	I can't have greyed
you can't have greyed
he can't have greyed
we can't have greyed
you can't have greyed
they can't have greyed	I can't have been greying
you can't have been greying
he can't have been greying
we can't have been greying
you can't have been greying
they can't have been greying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I grey?
can you grey?
can he grey?
can we grey?
can you grey?
can they grey? 	can I be greying?
can you be greying?
can he be greying?
can we be greying?
can you be greying?
can they be greying? 	can I have greyed?
can you have greyed?
can he have greyed?
can we have greyed?
can you have greyed?
can they have greyed? 	can I have been greying?
can you have been greying?
can he have been greying?
can we have been greying?
can you have been greying?
can they have been greying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I grey?
can't you grey?
can't he grey?
can't we grey?
can't you grey?
can't they grey? 	can't I be greying?
can't you be greying?
can't he be greying?
can't we be greying?
can't you be greying?
can't they be greying? 	can't I have greyed?
can't you have greyed?
can't he have greyed?
can't we have greyed?
can't you have greyed?
can't they have greyed? 	can't I have been greying?
can't you have been greying?
can't he have been greying?
can't we have been greying?
can't you have been greying?
can't they have been greying?