could groove
Verbo regular: groove - grooved- grooved

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could groove
you could groove
he could groove
we could groove
you could groove
they could groove 	I could be grooving
you could be grooving
he could be grooving
we could be grooving
you could be grooving
they could be grooving	I could have grooved
you could have grooved
he could have grooved
we could have grooved
you could have grooved
they could have grooved	I could have been grooving
you could have been grooving
he could have been grooving
we could have been grooving
you could have been grooving
they could have been grooving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not groove
you could not groove
he could not groove
we could not groove
you could not groove
they could not groove 	I could not be grooving
you could not be grooving
he could not be grooving
we could not be grooving
you could not be grooving
they could not be grooving	I could not have grooved
you could not have grooved
he could not have grooved
we could not have grooved
you could not have grooved
they could not have grooved	I could not have been grooving
you could not have been grooving
he could not have been grooving
we could not have been grooving
you could not have been grooving
they could not have been grooving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I groove?
could you groove?
could he groove?
could we groove?
could you groove?
could they groove? 	could I be grooving?
could you be grooving?
could he be grooving?
could we be grooving?
could you be grooving?
could they be grooving? 	could I have grooved?
could you have grooved?
could he have grooved?
could we have grooved?
could you have grooved?
could they have grooved? 	could I have been grooving?
could you have been grooving?
could he have been grooving?
could we have been grooving?
could you have been grooving?
could they have been grooving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not groove?
could you not groove?
could he not groove?
could we not groove?
could you not groove?
could they not groove? 	could I not be grooving?
could you not be grooving?
could he not be grooving?
could we not be grooving?
could you not be grooving?
could they not be grooving? 	could I not have grooved?
could you not have grooved?
could he not have grooved?
could we not have grooved?
could you not have grooved?
could they not have grooved? 	could I not have been grooving?
could you not have been grooving?
could he not have been grooving?
could we not have been grooving?
could you not have been grooving?
could they not have been grooving?