English verb conjugation
COULD MOTHPROOF

Regular verb: mothproof - mothproofed - mothproofed

Affirmation

Simple form	V-ing form
I could mothproof you could mothproof she could mothproof we could mothproof you could mothproof they could mothproof	I could be mothproofing you could be mothproofing she could be mothproofing we could be mothproofing you could be mothproofing they could be mothproofing
Perfect	V-ing perfect
I could have mothproofed you could have mothproofed she could have mothproofed we could have mothproofed you could have mothproofed they could have mothproofed	I could have been mothproofing you could have been mothproofing she could have been mothproofing we could have been mothproofing you could have been mothproofing they could have been mothproofing

Negation

Simple form	V-ing form
I could not mothproof you could not mothproof she could not mothproof we could not mothproof you could not mothproof they could not mothproof	I could not be mothproofing you could not be mothproofing she could not be mothproofing we could not be mothproofing you could not be mothproofing they could not be mothproofing
Perfect	V-ing perfect
I could not have mothproofed you could not have mothproofed she could not have mothproofed we could not have mothproofed you could not have mothproofed they could not have mothproofed	I could not have been mothproofing you could not have been mothproofing she could not have been mothproofing we could not have been mothproofing you could not have been mothproofing they could not have been mothproofing

Interrogative form

Simple form	V-ing form
could I mothproof? could you mothproof? could she mothproof? could we mothproof? could you mothproof? could they mothproof?	could I be mothproofing? could you be mothproofing? could she be mothproofing? could we be mothproofing? could you be mothproofing? could they be mothproofing?
Perfect	V-ing perfect
could I have mothproofed? could you have mothproofed? could she have mothproofed? could we have mothproofed? could you have mothproofed? could they have mothproofed?	could I have been mothproofing? could you have been mothproofing? could she have been mothproofing? could we have been mothproofing? could you have been mothproofing? could they have been mothproofing?

Interro-negative form

Simple form	V-ing form
could I not mothproof? could you not mothproof? could she not mothproof? could we not mothproof? could you not mothproof? could they not mothproof?	could I not be mothproofing? could you not be mothproofing? could she not be mothproofing? could we not be mothproofing? could you not be mothproofing? could they not be mothproofing?
Perfect	V-ing perfect
could I not have mothproofed? could you not have mothproofed? could she not have mothproofed? could we not have mothproofed? could you not have mothproofed? could they not have mothproofed?	could I not have been mothproofing? could you not have been mothproofing? could she not have been mothproofing? could we not have been mothproofing? could you not have been mothproofing? could they not have been mothproofing?