English verb conjugation
COULD ATROPHY

Regular verb: atrophy - atrophied - atrophied

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?