English verb conjugation
COULD SPOOF

Regular verb: spoof - spoofed - spoofed

Affirmation

Simple form	V-ing form
I could spoof you could spoof he could spoof we could spoof you could spoof they could spoof	I could be spoofing you could be spoofing he could be spoofing we could be spoofing you could be spoofing they could be spoofing
Perfect	V-ing perfect
I could have spoofed you could have spoofed he could have spoofed we could have spoofed you could have spoofed they could have spoofed	I could have been spoofing you could have been spoofing he could have been spoofing we could have been spoofing you could have been spoofing they could have been spoofing

Negation

Simple form	V-ing form
I could not spoof you could not spoof he could not spoof we could not spoof you could not spoof they could not spoof	I could not be spoofing you could not be spoofing he could not be spoofing we could not be spoofing you could not be spoofing they could not be spoofing
Perfect	V-ing perfect
I could not have spoofed you could not have spoofed he could not have spoofed we could not have spoofed you could not have spoofed they could not have spoofed	I could not have been spoofing you could not have been spoofing he could not have been spoofing we could not have been spoofing you could not have been spoofing they could not have been spoofing

Interrogative form

Simple form	V-ing form
could I spoof? could you spoof? could he spoof? could we spoof? could you spoof? could they spoof?	could I be spoofing? could you be spoofing? could he be spoofing? could we be spoofing? could you be spoofing? could they be spoofing?
Perfect	V-ing perfect
could I have spoofed? could you have spoofed? could he have spoofed? could we have spoofed? could you have spoofed? could they have spoofed?	could I have been spoofing? could you have been spoofing? could he have been spoofing? could we have been spoofing? could you have been spoofing? could they have been spoofing?

Interro-negative form

Simple form	V-ing form
could I not spoof? could you not spoof? could he not spoof? could we not spoof? could you not spoof? could they not spoof?	could I not be spoofing? could you not be spoofing? could he not be spoofing? could we not be spoofing? could you not be spoofing? could they not be spoofing?
Perfect	V-ing perfect
could I not have spoofed? could you not have spoofed? could he not have spoofed? could we not have spoofed? could you not have spoofed? could they not have spoofed?	could I not have been spoofing? could you not have been spoofing? could he not have been spoofing? could we not have been spoofing? could you not have been spoofing? could they not have been spoofing?