I could gender you could gender he could gender we could gender you could gender they could gender
V-ing form
I could be gendering you could be gendering he could be gendering we could be gendering you could be gendering they could be gendering
Perfect
I could have gendered you could have gendered he could have gendered we could have gendered you could have gendered they could have gendered
V-ing perfect
I could have been gendering you could have been gendering he could have been gendering we could have been gendering you could have been gendering they could have been gendering
Negation
Simple form
I could not gender you could not gender he could not gender we could not gender you could not gender they could not gender
V-ing form
I could not be gendering you could not be gendering he could not be gendering we could not be gendering you could not be gendering they could not be gendering
Perfect
I could not have gendered you could not have gendered he could not have gendered we could not have gendered you could not have gendered they could not have gendered
V-ing perfect
I could not have been gendering you could not have been gendering he could not have been gendering we could not have been gendering you could not have been gendering they could not have been gendering
Interrogative form
Simple form
could I gender? could you gender? could he gender? could we gender? could you gender? could they gender?
V-ing form
could I be gendering? could you be gendering? could he be gendering? could we be gendering? could you be gendering? could they be gendering?
Perfect
could I have gendered? could you have gendered? could he have gendered? could we have gendered? could you have gendered? could they have gendered?
V-ing perfect
could I have been gendering? could you have been gendering? could he have been gendering? could we have been gendering? could you have been gendering? could they have been gendering?
Interro-negative form
Simple form
could I not gender? could you not gender? could he not gender? could we not gender? could you not gender? could they not gender?
V-ing form
could I not be gendering? could you not be gendering? could he not be gendering? could we not be gendering? could you not be gendering? could they not be gendering?
Perfect
could I not have gendered? could you not have gendered? could he not have gendered? could we not have gendered? could you not have gendered? could they not have gendered?
V-ing perfect
could I not have been gendering? could you not have been gendering? could he not have been gendering? could we not have been gendering? could you not have been gendering? could they not have been gendering?