I could bulletproof you could bulletproof she could bulletproof we could bulletproof you could bulletproof they could bulletproof
V-ing form
I could be bulletproofing you could be bulletproofing she could be bulletproofing we could be bulletproofing you could be bulletproofing they could be bulletproofing
Perfect
I could have bulletproofed you could have bulletproofed she could have bulletproofed we could have bulletproofed you could have bulletproofed they could have bulletproofed
V-ing perfect
I could have been bulletproofing you could have been bulletproofing she could have been bulletproofing we could have been bulletproofing you could have been bulletproofing they could have been bulletproofing
Negation
Simple form
I couldn't bulletproof you couldn't bulletproof she couldn't bulletproof we couldn't bulletproof you couldn't bulletproof they couldn't bulletproof
V-ing form
I couldn't be bulletproofing you couldn't be bulletproofing she couldn't be bulletproofing we couldn't be bulletproofing you couldn't be bulletproofing they couldn't be bulletproofing
Perfect
I couldn't have bulletproofed you couldn't have bulletproofed she couldn't have bulletproofed we couldn't have bulletproofed you couldn't have bulletproofed they couldn't have bulletproofed
V-ing perfect
I couldn't have been bulletproofing you couldn't have been bulletproofing she couldn't have been bulletproofing we couldn't have been bulletproofing you couldn't have been bulletproofing they couldn't have been bulletproofing
Interrogative form
Simple form
could I bulletproof? could you bulletproof? could she bulletproof? could we bulletproof? could you bulletproof? could they bulletproof?
V-ing form
could I be bulletproofing? could you be bulletproofing? could she be bulletproofing? could we be bulletproofing? could you be bulletproofing? could they be bulletproofing?
Perfect
could I have bulletproofed? could you have bulletproofed? could she have bulletproofed? could we have bulletproofed? could you have bulletproofed? could they have bulletproofed?
V-ing perfect
could I have been bulletproofing? could you have been bulletproofing? could she have been bulletproofing? could we have been bulletproofing? could you have been bulletproofing? could they have been bulletproofing?
Interro-negative form
Simple form
couldn't I bulletproof? couldn't you bulletproof? couldn't she bulletproof? couldn't we bulletproof? couldn't you bulletproof? couldn't they bulletproof?
V-ing form
couldn't I be bulletproofing? couldn't you be bulletproofing? couldn't she be bulletproofing? couldn't we be bulletproofing? couldn't you be bulletproofing? couldn't they be bulletproofing?
Perfect
couldn't I have bulletproofed? couldn't you have bulletproofed? couldn't she have bulletproofed? couldn't we have bulletproofed? couldn't you have bulletproofed? couldn't they have bulletproofed?
V-ing perfect
couldn't I have been bulletproofing? couldn't you have been bulletproofing? couldn't she have been bulletproofing? couldn't we have been bulletproofing? couldn't you have been bulletproofing? couldn't they have been bulletproofing?