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 couldn't groove
you couldn't groove
he couldn't groove
we couldn't groove
you couldn't groove
they couldn't groove 	I couldn't be grooving
you couldn't be grooving
he couldn't be grooving
we couldn't be grooving
you couldn't be grooving
they couldn't be grooving	I couldn't have grooved
you couldn't have grooved
he couldn't have grooved
we couldn't have grooved
you couldn't have grooved
they couldn't have grooved	I couldn't have been grooving
you couldn't have been grooving
he couldn't have been grooving
we couldn't have been grooving
you couldn't have been grooving
they couldn't 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 	
couldn't I groove?
couldn't you groove?
couldn't he groove?
couldn't we groove?
couldn't you groove?
couldn't they groove? 	couldn't I be grooving?
couldn't you be grooving?
couldn't he be grooving?
couldn't we be grooving?
couldn't you be grooving?
couldn't they be grooving? 	couldn't I have grooved?
couldn't you have grooved?
couldn't he have grooved?
couldn't we have grooved?
couldn't you have grooved?
couldn't they have grooved? 	couldn't I have been grooving?
couldn't you have been grooving?
couldn't he have been grooving?
couldn't we have been grooving?
couldn't you have been grooving?
couldn't they have been grooving?