must weatherproof
Verbo regular: weatherproof - weatherproofed- weatherproofed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must weatherproof
you must weatherproof
he must weatherproof
we must weatherproof
you must weatherproof
they must weatherproof 	I must be weatherproofing
you must be weatherproofing
he must be weatherproofing
we must be weatherproofing
you must be weatherproofing
they must be weatherproofing	I must have weatherproofed
you must have weatherproofed
he must have weatherproofed
we must have weatherproofed
you must have weatherproofed
they must have weatherproofed	I must have been weatherproofing
you must have been weatherproofing
he must have been weatherproofing
we must have been weatherproofing
you must have been weatherproofing
they must have been weatherproofing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't weatherproof
you mustn't weatherproof
he mustn't weatherproof
we mustn't weatherproof
you mustn't weatherproof
they mustn't weatherproof 	I mustn't be weatherproofing
you mustn't be weatherproofing
he mustn't be weatherproofing
we mustn't be weatherproofing
you mustn't be weatherproofing
they mustn't be weatherproofing	I mustn't have weatherproofed
you mustn't have weatherproofed
he mustn't have weatherproofed
we mustn't have weatherproofed
you mustn't have weatherproofed
they mustn't have weatherproofed	I mustn't have been weatherproofing
you mustn't have been weatherproofing
he mustn't have been weatherproofing
we mustn't have been weatherproofing
you mustn't have been weatherproofing
they mustn't have been weatherproofing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I weatherproof?
must you weatherproof?
must he weatherproof?
must we weatherproof?
must you weatherproof?
must they weatherproof? 	must I be weatherproofing?
must you be weatherproofing?
must he be weatherproofing?
must we be weatherproofing?
must you be weatherproofing?
must they be weatherproofing? 	must I have weatherproofed?
must you have weatherproofed?
must he have weatherproofed?
must we have weatherproofed?
must you have weatherproofed?
must they have weatherproofed? 	must I have been weatherproofing?
must you have been weatherproofing?
must he have been weatherproofing?
must we have been weatherproofing?
must you have been weatherproofing?
must they have been weatherproofing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I weatherproof?
mustn't you weatherproof?
mustn't he weatherproof?
mustn't we weatherproof?
mustn't you weatherproof?
mustn't they weatherproof? 	mustn't I be weatherproofing?
mustn't you be weatherproofing?
mustn't he be weatherproofing?
mustn't we be weatherproofing?
mustn't you be weatherproofing?
mustn't they be weatherproofing? 	mustn't I have weatherproofed?
mustn't you have weatherproofed?
mustn't he have weatherproofed?
mustn't we have weatherproofed?
mustn't you have weatherproofed?
mustn't they have weatherproofed? 	mustn't I have been weatherproofing?
mustn't you have been weatherproofing?
mustn't he have been weatherproofing?
mustn't we have been weatherproofing?
mustn't you have been weatherproofing?
mustn't they have been weatherproofing?