I must weatherproof you must weatherproof she must weatherproof we must weatherproof you must weatherproof they must weatherproof
Forme en V-ing
I must be weatherproofing you must be weatherproofing she must be weatherproofing we must be weatherproofing you must be weatherproofing they must be weatherproofing
Perfect
I must have weatherproofed you must have weatherproofed she must have weatherproofed we must have weatherproofed you must have weatherproofed they must have weatherproofed
Perfect en V-ing
I must have been weatherproofing you must have been weatherproofing she must have been weatherproofing we must have been weatherproofing you must have been weatherproofing they must have been weatherproofing
Négation
Forme simple
I mustn't weatherproof you mustn't weatherproof she mustn't weatherproof we mustn't weatherproof you mustn't weatherproof they mustn't weatherproof
Forme en V-ing
I mustn't be weatherproofing you mustn't be weatherproofing she mustn't be weatherproofing we mustn't be weatherproofing you mustn't be weatherproofing they mustn't be weatherproofing
Perfect
I mustn't have weatherproofed you mustn't have weatherproofed she mustn't have weatherproofed we mustn't have weatherproofed you mustn't have weatherproofed they mustn't have weatherproofed
Perfect en V-ing
I mustn't have been weatherproofing you mustn't have been weatherproofing she mustn't have been weatherproofing we mustn't have been weatherproofing you mustn't have been weatherproofing they mustn't have been weatherproofing
Forme interrogative
Forme simple
must I weatherproof? must you weatherproof? must she weatherproof? must we weatherproof? must you weatherproof? must they weatherproof?
Forme en V-ing
must I be weatherproofing? must you be weatherproofing? must she be weatherproofing? must we be weatherproofing? must you be weatherproofing? must they be weatherproofing?
Perfect
must I have weatherproofed? must you have weatherproofed? must she have weatherproofed? must we have weatherproofed? must you have weatherproofed? must they have weatherproofed?
Perfect en V-ing
must I have been weatherproofing? must you have been weatherproofing? must she have been weatherproofing? must we have been weatherproofing? must you have been weatherproofing? must they have been weatherproofing?
Forme interro-négative
Forme simple
mustn't I weatherproof? mustn't you weatherproof? mustn't she weatherproof? mustn't we weatherproof? mustn't you weatherproof? mustn't they weatherproof?
Forme en V-ing
mustn't I be weatherproofing? mustn't you be weatherproofing? mustn't she be weatherproofing? mustn't we be weatherproofing? mustn't you be weatherproofing? mustn't they be weatherproofing?
Perfect
mustn't I have weatherproofed? mustn't you have weatherproofed? mustn't she have weatherproofed? mustn't we have weatherproofed? mustn't you have weatherproofed? mustn't they have weatherproofed?
Perfect en V-ing
mustn't I have been weatherproofing? mustn't you have been weatherproofing? mustn't she have been weatherproofing? mustn't we have been weatherproofing? mustn't you have been weatherproofing? mustn't they have been weatherproofing?