I can mothproof you can mothproof she can mothproof we can mothproof you can mothproof they can mothproof
V-ing form
I can be mothproofing you can be mothproofing she can be mothproofing we can be mothproofing you can be mothproofing they can be mothproofing
Perfect
I can have mothproofed you can have mothproofed she can have mothproofed we can have mothproofed you can have mothproofed they can have mothproofed
V-ing perfect
I can have been mothproofing you can have been mothproofing she can have been mothproofing we can have been mothproofing you can have been mothproofing they can have been mothproofing
Negation
Simple form
I can't mothproof you can't mothproof she can't mothproof we can't mothproof you can't mothproof they can't mothproof
V-ing form
I can't be mothproofing you can't be mothproofing she can't be mothproofing we can't be mothproofing you can't be mothproofing they can't be mothproofing
Perfect
I can't have mothproofed you can't have mothproofed she can't have mothproofed we can't have mothproofed you can't have mothproofed they can't have mothproofed
V-ing perfect
I can't have been mothproofing you can't have been mothproofing she can't have been mothproofing we can't have been mothproofing you can't have been mothproofing they can't have been mothproofing
Interrogative form
Simple form
can I mothproof? can you mothproof? can she mothproof? can we mothproof? can you mothproof? can they mothproof?
V-ing form
can I be mothproofing? can you be mothproofing? can she be mothproofing? can we be mothproofing? can you be mothproofing? can they be mothproofing?
Perfect
can I have mothproofed? can you have mothproofed? can she have mothproofed? can we have mothproofed? can you have mothproofed? can they have mothproofed?
V-ing perfect
can I have been mothproofing? can you have been mothproofing? can she have been mothproofing? can we have been mothproofing? can you have been mothproofing? can they have been mothproofing?
Interro-negative form
Simple form
can't I mothproof? can't you mothproof? can't she mothproof? can't we mothproof? can't you mothproof? can't they mothproof?
V-ing form
can't I be mothproofing? can't you be mothproofing? can't she be mothproofing? can't we be mothproofing? can't you be mothproofing? can't they be mothproofing?
Perfect
can't I have mothproofed? can't you have mothproofed? can't she have mothproofed? can't we have mothproofed? can't you have mothproofed? can't they have mothproofed?
V-ing perfect
can't I have been mothproofing? can't you have been mothproofing? can't she have been mothproofing? can't we have been mothproofing? can't you have been mothproofing? can't they have been mothproofing?