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 couldn't mothproof you couldn't mothproof she 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 she 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 she 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 she 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 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
couldn't I mothproof? couldn't you mothproof? couldn't she 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 she 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 she 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 she have been mothproofing? couldn't we have been mothproofing? couldn't you have been mothproofing? couldn't they have been mothproofing?