may grimace
Verbo regular: grimace - grimaced- grimaced

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

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not grimace
you may not grimace
he may not grimace
we may not grimace
you may not grimace
they may not grimace 	I may not be grimacing
you may not be grimacing
he may not be grimacing
we may not be grimacing
you may not be grimacing
they may not be grimacing	I may not have grimaced
you may not have grimaced
he may not have grimaced
we may not have grimaced
you may not have grimaced
they may not have grimaced	I may not have been grimacing
you may not have been grimacing
he may not have been grimacing
we may not have been grimacing
you may not have been grimacing
they may not have been grimacing	

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

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