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 must not weatherproof
you must not weatherproof
he must not weatherproof
we must not weatherproof
you must not weatherproof
they must not weatherproof 	I must not be weatherproofing
you must not be weatherproofing
he must not be weatherproofing
we must not be weatherproofing
you must not be weatherproofing
they must not be weatherproofing	I must not have weatherproofed
you must not have weatherproofed
he must not have weatherproofed
we must not have weatherproofed
you must not have weatherproofed
they must not have weatherproofed	I must not have been weatherproofing
you must not have been weatherproofing
he must not have been weatherproofing
we must not have been weatherproofing
you must not have been weatherproofing
they must not 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 	
must I not weatherproof?
must you not weatherproof?
must he not weatherproof?
must we not weatherproof?
must you not weatherproof?
must they not weatherproof? 	must I not be weatherproofing?
must you not be weatherproofing?
must he not be weatherproofing?
must we not be weatherproofing?
must you not be weatherproofing?
must they not be weatherproofing? 	must I not have weatherproofed?
must you not have weatherproofed?
must he not have weatherproofed?
must we not have weatherproofed?
must you not have weatherproofed?
must they not have weatherproofed? 	must I not have been weatherproofing?
must you not have been weatherproofing?
must he not have been weatherproofing?
must we not have been weatherproofing?
must you not have been weatherproofing?
must they not have been weatherproofing?