could degenerate
Verbo regular: degenerate - degenerated- degenerated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could degenerate
you could degenerate
he could degenerate
we could degenerate
you could degenerate
they could degenerate 	I could be degenerating
you could be degenerating
he could be degenerating
we could be degenerating
you could be degenerating
they could be degenerating	I could have degenerated
you could have degenerated
he could have degenerated
we could have degenerated
you could have degenerated
they could have degenerated	I could have been degenerating
you could have been degenerating
he could have been degenerating
we could have been degenerating
you could have been degenerating
they could have been degenerating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't degenerate
you couldn't degenerate
he couldn't degenerate
we couldn't degenerate
you couldn't degenerate
they couldn't degenerate 	I couldn't be degenerating
you couldn't be degenerating
he couldn't be degenerating
we couldn't be degenerating
you couldn't be degenerating
they couldn't be degenerating	I couldn't have degenerated
you couldn't have degenerated
he couldn't have degenerated
we couldn't have degenerated
you couldn't have degenerated
they couldn't have degenerated	I couldn't have been degenerating
you couldn't have been degenerating
he couldn't have been degenerating
we couldn't have been degenerating
you couldn't have been degenerating
they couldn't have been degenerating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I degenerate?
could you degenerate?
could he degenerate?
could we degenerate?
could you degenerate?
could they degenerate? 	could I be degenerating?
could you be degenerating?
could he be degenerating?
could we be degenerating?
could you be degenerating?
could they be degenerating? 	could I have degenerated?
could you have degenerated?
could he have degenerated?
could we have degenerated?
could you have degenerated?
could they have degenerated? 	could I have been degenerating?
could you have been degenerating?
could he have been degenerating?
could we have been degenerating?
could you have been degenerating?
could they have been degenerating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I degenerate?
couldn't you degenerate?
couldn't he degenerate?
couldn't we degenerate?
couldn't you degenerate?
couldn't they degenerate? 	couldn't I be degenerating?
couldn't you be degenerating?
couldn't he be degenerating?
couldn't we be degenerating?
couldn't you be degenerating?
couldn't they be degenerating? 	couldn't I have degenerated?
couldn't you have degenerated?
couldn't he have degenerated?
couldn't we have degenerated?
couldn't you have degenerated?
couldn't they have degenerated? 	couldn't I have been degenerating?
couldn't you have been degenerating?
couldn't he have been degenerating?
couldn't we have been degenerating?
couldn't you have been degenerating?
couldn't they have been degenerating?