English verb conjugation
COULD ROACH

Regular verb: roach - roached - roached

Affirmation

Simple form	V-ing form
I could roach you could roach he could roach we could roach you could roach they could roach	I could be roaching you could be roaching he could be roaching we could be roaching you could be roaching they could be roaching
Perfect	V-ing perfect
I could have roached you could have roached he could have roached we could have roached you could have roached they could have roached	I could have been roaching you could have been roaching he could have been roaching we could have been roaching you could have been roaching they could have been roaching

Negation

Simple form	V-ing form
I could not roach you could not roach he could not roach we could not roach you could not roach they could not roach	I could not be roaching you could not be roaching he could not be roaching we could not be roaching you could not be roaching they could not be roaching
Perfect	V-ing perfect
I could not have roached you could not have roached he could not have roached we could not have roached you could not have roached they could not have roached	I could not have been roaching you could not have been roaching he could not have been roaching we could not have been roaching you could not have been roaching they could not have been roaching

Interrogative form

Simple form	V-ing form
could I roach? could you roach? could he roach? could we roach? could you roach? could they roach?	could I be roaching? could you be roaching? could he be roaching? could we be roaching? could you be roaching? could they be roaching?
Perfect	V-ing perfect
could I have roached? could you have roached? could he have roached? could we have roached? could you have roached? could they have roached?	could I have been roaching? could you have been roaching? could he have been roaching? could we have been roaching? could you have been roaching? could they have been roaching?

Interro-negative form

Simple form	V-ing form
could I not roach? could you not roach? could he not roach? could we not roach? could you not roach? could they not roach?	could I not be roaching? could you not be roaching? could he not be roaching? could we not be roaching? could you not be roaching? could they not be roaching?
Perfect	V-ing perfect
could I not have roached? could you not have roached? could he not have roached? could we not have roached? could you not have roached? could they not have roached?	could I not have been roaching? could you not have been roaching? could he not have been roaching? could we not have been roaching? could you not have been roaching? could they not have been roaching?