could atrophy
Verbo regular: atrophy - atrophied- atrophied

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could atrophy
you could atrophy
he could atrophy
we could atrophy
you could atrophy
they could atrophy 	I could be atrophying
you could be atrophying
he could be atrophying
we could be atrophying
you could be atrophying
they could be atrophying	I could have atrophied
you could have atrophied
he could have atrophied
we could have atrophied
you could have atrophied
they could have atrophied	I could have been atrophying
you could have been atrophying
he could have been atrophying
we could have been atrophying
you could have been atrophying
they could have been atrophying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not atrophy
you could not atrophy
he could not atrophy
we could not atrophy
you could not atrophy
they could not atrophy 	I could not be atrophying
you could not be atrophying
he could not be atrophying
we could not be atrophying
you could not be atrophying
they could not be atrophying	I could not have atrophied
you could not have atrophied
he could not have atrophied
we could not have atrophied
you could not have atrophied
they could not have atrophied	I could not have been atrophying
you could not have been atrophying
he could not have been atrophying
we could not have been atrophying
you could not have been atrophying
they could not have been atrophying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I atrophy?
could you atrophy?
could he atrophy?
could we atrophy?
could you atrophy?
could they atrophy? 	could I be atrophying?
could you be atrophying?
could he be atrophying?
could we be atrophying?
could you be atrophying?
could they be atrophying? 	could I have atrophied?
could you have atrophied?
could he have atrophied?
could we have atrophied?
could you have atrophied?
could they have atrophied? 	could I have been atrophying?
could you have been atrophying?
could he have been atrophying?
could we have been atrophying?
could you have been atrophying?
could they have been atrophying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not atrophy?
could you not atrophy?
could he not atrophy?
could we not atrophy?
could you not atrophy?
could they not atrophy? 	could I not be atrophying?
could you not be atrophying?
could he not be atrophying?
could we not be atrophying?
could you not be atrophying?
could they not be atrophying? 	could I not have atrophied?
could you not have atrophied?
could he not have atrophied?
could we not have atrophied?
could you not have atrophied?
could they not have atrophied? 	could I not have been atrophying?
could you not have been atrophying?
could he not have been atrophying?
could we not have been atrophying?
could you not have been atrophying?
could they not have been atrophying?