can grimace
Verbo regular: grimace - grimaced- grimaced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can grimace
you can grimace
he can grimace
we can grimace
you can grimace
they can grimace 	I can be grimacing
you can be grimacing
he can be grimacing
we can be grimacing
you can be grimacing
they can be grimacing	I can have grimaced
you can have grimaced
he can have grimaced
we can have grimaced
you can have grimaced
they can have grimaced	I can have been grimacing
you can have been grimacing
he can have been grimacing
we can have been grimacing
you can have been grimacing
they can have been grimacing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't grimace
you can't grimace
he can't grimace
we can't grimace
you can't grimace
they can't grimace 	I can't be grimacing
you can't be grimacing
he can't be grimacing
we can't be grimacing
you can't be grimacing
they can't be grimacing	I can't have grimaced
you can't have grimaced
he can't have grimaced
we can't have grimaced
you can't have grimaced
they can't have grimaced	I can't have been grimacing
you can't have been grimacing
he can't have been grimacing
we can't have been grimacing
you can't have been grimacing
they can't have been grimacing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I grimace?
can you grimace?
can he grimace?
can we grimace?
can you grimace?
can they grimace? 	can I be grimacing?
can you be grimacing?
can he be grimacing?
can we be grimacing?
can you be grimacing?
can they be grimacing? 	can I have grimaced?
can you have grimaced?
can he have grimaced?
can we have grimaced?
can you have grimaced?
can they have grimaced? 	can I have been grimacing?
can you have been grimacing?
can he have been grimacing?
can we have been grimacing?
can you have been grimacing?
can they have been grimacing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I grimace?
can't you grimace?
can't he grimace?
can't we grimace?
can't you grimace?
can't they grimace? 	can't I be grimacing?
can't you be grimacing?
can't he be grimacing?
can't we be grimacing?
can't you be grimacing?
can't they be grimacing? 	can't I have grimaced?
can't you have grimaced?
can't he have grimaced?
can't we have grimaced?
can't you have grimaced?
can't they have grimaced? 	can't I have been grimacing?
can't you have been grimacing?
can't he have been grimacing?
can't we have been grimacing?
can't you have been grimacing?
can't they have been grimacing?