could beef
Verbo regular: beef - beefed- beefed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could beef
you could beef
he could beef
we could beef
you could beef
they could beef 	I could be beefing
you could be beefing
he could be beefing
we could be beefing
you could be beefing
they could be beefing	I could have beefed
you could have beefed
he could have beefed
we could have beefed
you could have beefed
they could have beefed	I could have been beefing
you could have been beefing
he could have been beefing
we could have been beefing
you could have been beefing
they could have been beefing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't beef
you couldn't beef
he couldn't beef
we couldn't beef
you couldn't beef
they couldn't beef 	I couldn't be beefing
you couldn't be beefing
he couldn't be beefing
we couldn't be beefing
you couldn't be beefing
they couldn't be beefing	I couldn't have beefed
you couldn't have beefed
he couldn't have beefed
we couldn't have beefed
you couldn't have beefed
they couldn't have beefed	I couldn't have been beefing
you couldn't have been beefing
he couldn't have been beefing
we couldn't have been beefing
you couldn't have been beefing
they couldn't have been beefing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I beef?
could you beef?
could he beef?
could we beef?
could you beef?
could they beef? 	could I be beefing?
could you be beefing?
could he be beefing?
could we be beefing?
could you be beefing?
could they be beefing? 	could I have beefed?
could you have beefed?
could he have beefed?
could we have beefed?
could you have beefed?
could they have beefed? 	could I have been beefing?
could you have been beefing?
could he have been beefing?
could we have been beefing?
could you have been beefing?
could they have been beefing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I beef?
couldn't you beef?
couldn't he beef?
couldn't we beef?
couldn't you beef?
couldn't they beef? 	couldn't I be beefing?
couldn't you be beefing?
couldn't he be beefing?
couldn't we be beefing?
couldn't you be beefing?
couldn't they be beefing? 	couldn't I have beefed?
couldn't you have beefed?
couldn't he have beefed?
couldn't we have beefed?
couldn't you have beefed?
couldn't they have beefed? 	couldn't I have been beefing?
couldn't you have been beefing?
couldn't he have been beefing?
couldn't we have been beefing?
couldn't you have been beefing?
couldn't they have been beefing?