must fireproof
Verbo regular: fireproof - fireproofed- fireproofed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must fireproof
you must fireproof
she must fireproof
we must fireproof
you must fireproof
they must fireproof 	I must be fireproofing
you must be fireproofing
she must be fireproofing
we must be fireproofing
you must be fireproofing
they must be fireproofing	I must have fireproofed
you must have fireproofed
she must have fireproofed
we must have fireproofed
you must have fireproofed
they must have fireproofed	I must have been fireproofing
you must have been fireproofing
she must have been fireproofing
we must have been fireproofing
you must have been fireproofing
they must have been fireproofing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't fireproof
you mustn't fireproof
she mustn't fireproof
we mustn't fireproof
you mustn't fireproof
they mustn't fireproof 	I mustn't be fireproofing
you mustn't be fireproofing
she mustn't be fireproofing
we mustn't be fireproofing
you mustn't be fireproofing
they mustn't be fireproofing	I mustn't have fireproofed
you mustn't have fireproofed
she mustn't have fireproofed
we mustn't have fireproofed
you mustn't have fireproofed
they mustn't have fireproofed	I mustn't have been fireproofing
you mustn't have been fireproofing
she mustn't have been fireproofing
we mustn't have been fireproofing
you mustn't have been fireproofing
they mustn't have been fireproofing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I fireproof?
must you fireproof?
must she fireproof?
must we fireproof?
must you fireproof?
must they fireproof? 	must I be fireproofing?
must you be fireproofing?
must she be fireproofing?
must we be fireproofing?
must you be fireproofing?
must they be fireproofing? 	must I have fireproofed?
must you have fireproofed?
must she have fireproofed?
must we have fireproofed?
must you have fireproofed?
must they have fireproofed? 	must I have been fireproofing?
must you have been fireproofing?
must she have been fireproofing?
must we have been fireproofing?
must you have been fireproofing?
must they have been fireproofing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I fireproof?
mustn't you fireproof?
mustn't she fireproof?
mustn't we fireproof?
mustn't you fireproof?
mustn't they fireproof? 	mustn't I be fireproofing?
mustn't you be fireproofing?
mustn't she be fireproofing?
mustn't we be fireproofing?
mustn't you be fireproofing?
mustn't they be fireproofing? 	mustn't I have fireproofed?
mustn't you have fireproofed?
mustn't she have fireproofed?
mustn't we have fireproofed?
mustn't you have fireproofed?
mustn't they have fireproofed? 	mustn't I have been fireproofing?
mustn't you have been fireproofing?
mustn't she have been fireproofing?
mustn't we have been fireproofing?
mustn't you have been fireproofing?
mustn't they have been fireproofing?