must waterproof
Verbe régulier : waterproof - waterproofed- waterproofed
Traduction française : imperméabiliser - rendre étanche 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must waterproof
you must waterproof
she must waterproof
we must waterproof
you must waterproof
they must waterproof 	I must be waterproofing
you must be waterproofing
she must be waterproofing
we must be waterproofing
you must be waterproofing
they must be waterproofing	I must have waterproofed
you must have waterproofed
she must have waterproofed
we must have waterproofed
you must have waterproofed
they must have waterproofed	I must have been waterproofing
you must have been waterproofing
she must have been waterproofing
we must have been waterproofing
you must have been waterproofing
they must have been waterproofing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't waterproof
you mustn't waterproof
she mustn't waterproof
we mustn't waterproof
you mustn't waterproof
they mustn't waterproof 	I mustn't be waterproofing
you mustn't be waterproofing
she mustn't be waterproofing
we mustn't be waterproofing
you mustn't be waterproofing
they mustn't be waterproofing	I mustn't have waterproofed
you mustn't have waterproofed
she mustn't have waterproofed
we mustn't have waterproofed
you mustn't have waterproofed
they mustn't have waterproofed	I mustn't have been waterproofing
you mustn't have been waterproofing
she mustn't have been waterproofing
we mustn't have been waterproofing
you mustn't have been waterproofing
they mustn't have been waterproofing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I waterproof?
must you waterproof?
must she waterproof?
must we waterproof?
must you waterproof?
must they waterproof? 	must I be waterproofing?
must you be waterproofing?
must she be waterproofing?
must we be waterproofing?
must you be waterproofing?
must they be waterproofing? 	must I have waterproofed?
must you have waterproofed?
must she have waterproofed?
must we have waterproofed?
must you have waterproofed?
must they have waterproofed? 	must I have been waterproofing?
must you have been waterproofing?
must she have been waterproofing?
must we have been waterproofing?
must you have been waterproofing?
must they have been waterproofing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I waterproof?
mustn't you waterproof?
mustn't she waterproof?
mustn't we waterproof?
mustn't you waterproof?
mustn't they waterproof? 	mustn't I be waterproofing?
mustn't you be waterproofing?
mustn't she be waterproofing?
mustn't we be waterproofing?
mustn't you be waterproofing?
mustn't they be waterproofing? 	mustn't I have waterproofed?
mustn't you have waterproofed?
mustn't she have waterproofed?
mustn't we have waterproofed?
mustn't you have waterproofed?
mustn't they have waterproofed? 	mustn't I have been waterproofing?
mustn't you have been waterproofing?
mustn't she have been waterproofing?
mustn't we have been waterproofing?
mustn't you have been waterproofing?
mustn't they have been waterproofing?