English verb conjugation
COULD RE-PROOF

Regular verb: re-proof - re-proofed - re-proofed

Affirmation

Simple form	V-ing form
I could re-proof you could re-proof he could re-proof we could re-proof you could re-proof they could re-proof	I could be re-proofing you could be re-proofing he could be re-proofing we could be re-proofing you could be re-proofing they could be re-proofing
Perfect	V-ing perfect
I could have re-proofed you could have re-proofed he could have re-proofed we could have re-proofed you could have re-proofed they could have re-proofed	I could have been re-proofing you could have been re-proofing he could have been re-proofing we could have been re-proofing you could have been re-proofing they could have been re-proofing

Negation

Simple form	V-ing form
I could not re-proof you could not re-proof he could not re-proof we could not re-proof you could not re-proof they could not re-proof	I could not be re-proofing you could not be re-proofing he could not be re-proofing we could not be re-proofing you could not be re-proofing they could not be re-proofing
Perfect	V-ing perfect
I could not have re-proofed you could not have re-proofed he could not have re-proofed we could not have re-proofed you could not have re-proofed they could not have re-proofed	I could not have been re-proofing you could not have been re-proofing he could not have been re-proofing we could not have been re-proofing you could not have been re-proofing they could not have been re-proofing

Interrogative form

Simple form	V-ing form
could I re-proof? could you re-proof? could he re-proof? could we re-proof? could you re-proof? could they re-proof?	could I be re-proofing? could you be re-proofing? could he be re-proofing? could we be re-proofing? could you be re-proofing? could they be re-proofing?
Perfect	V-ing perfect
could I have re-proofed? could you have re-proofed? could he have re-proofed? could we have re-proofed? could you have re-proofed? could they have re-proofed?	could I have been re-proofing? could you have been re-proofing? could he have been re-proofing? could we have been re-proofing? could you have been re-proofing? could they have been re-proofing?

Interro-negative form

Simple form	V-ing form
could I not re-proof? could you not re-proof? could he not re-proof? could we not re-proof? could you not re-proof? could they not re-proof?	could I not be re-proofing? could you not be re-proofing? could he not be re-proofing? could we not be re-proofing? could you not be re-proofing? could they not be re-proofing?
Perfect	V-ing perfect
could I not have re-proofed? could you not have re-proofed? could he not have re-proofed? could we not have re-proofed? could you not have re-proofed? could they not have re-proofed?	could I not have been re-proofing? could you not have been re-proofing? could he not have been re-proofing? could we not have been re-proofing? could you not have been re-proofing? could they not have been re-proofing?