could bulletproof
Regular verb: bulletproof - bulletproofed- bulletproofed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could bulletproof
you could bulletproof
she could bulletproof
we could bulletproof
you could bulletproof
they could bulletproof 	I could be bulletproofing
you could be bulletproofing
she could be bulletproofing
we could be bulletproofing
you could be bulletproofing
they could be bulletproofing	I could have bulletproofed
you could have bulletproofed
she could have bulletproofed
we could have bulletproofed
you could have bulletproofed
they could have bulletproofed	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 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't bulletproof
you couldn't bulletproof
she couldn't bulletproof
we couldn't bulletproof
you couldn't bulletproof
they couldn't bulletproof 	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	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	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 	V-ing form 	Perfect 	V-ing perfect 	
could I bulletproof?
could you bulletproof?
could she bulletproof?
could we bulletproof?
could you bulletproof?
could they bulletproof? 	could I be bulletproofing?
could you be bulletproofing?
could she be bulletproofing?
could we be bulletproofing?
could you be bulletproofing?
could they be bulletproofing? 	could I have bulletproofed?
could you have bulletproofed?
could she have bulletproofed?
could we have bulletproofed?
could you have bulletproofed?
could they have bulletproofed? 	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 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I bulletproof?
couldn't you bulletproof?
couldn't she bulletproof?
couldn't we bulletproof?
couldn't you bulletproof?
couldn't they bulletproof? 	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? 	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? 	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?