English verb conjugation
COULD MOTHPROOF

Regular verb: mothproof - mothproofed - mothproofed

Affirmation

Simple form	V-ing form
I could mothproof you could mothproof he could mothproof we could mothproof you could mothproof they could mothproof	I could be mothproofing you could be mothproofing he 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 he 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 he 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 couldn't mothproof you couldn't mothproof he couldn't mothproof we couldn't mothproof you couldn't mothproof they couldn't mothproof	I couldn't be mothproofing you couldn't be mothproofing he couldn't be mothproofing we couldn't be mothproofing you couldn't be mothproofing they couldn't be mothproofing
Perfect	V-ing perfect
I couldn't have mothproofed you couldn't have mothproofed he couldn't have mothproofed we couldn't have mothproofed you couldn't have mothproofed they couldn't have mothproofed	I couldn't have been mothproofing you couldn't have been mothproofing he couldn't have been mothproofing we couldn't have been mothproofing you couldn't have been mothproofing they couldn't have been mothproofing

Interrogative form

Simple form	V-ing form
could I mothproof? could you mothproof? could he mothproof? could we mothproof? could you mothproof? could they mothproof?	could I be mothproofing? could you be mothproofing? could he 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 he 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 he 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
couldn't I mothproof? couldn't you mothproof? couldn't he mothproof? couldn't we mothproof? couldn't you mothproof? couldn't they mothproof?	couldn't I be mothproofing? couldn't you be mothproofing? couldn't he be mothproofing? couldn't we be mothproofing? couldn't you be mothproofing? couldn't they be mothproofing?
Perfect	V-ing perfect
couldn't I have mothproofed? couldn't you have mothproofed? couldn't he have mothproofed? couldn't we have mothproofed? couldn't you have mothproofed? couldn't they have mothproofed?	couldn't I have been mothproofing? couldn't you have been mothproofing? couldn't he have been mothproofing? couldn't we have been mothproofing? couldn't you have been mothproofing? couldn't they have been mothproofing?