could quakeproof
Verbe régulier : quakeproof - quakeproofed- quakeproofed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could quakeproof
you could quakeproof
she could quakeproof
we could quakeproof
you could quakeproof
they could quakeproof 	I could be quakeproofing
you could be quakeproofing
she could be quakeproofing
we could be quakeproofing
you could be quakeproofing
they could be quakeproofing	I could have quakeproofed
you could have quakeproofed
she could have quakeproofed
we could have quakeproofed
you could have quakeproofed
they could have quakeproofed	I could have been quakeproofing
you could have been quakeproofing
she could have been quakeproofing
we could have been quakeproofing
you could have been quakeproofing
they could have been quakeproofing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not quakeproof
you could not quakeproof
she could not quakeproof
we could not quakeproof
you could not quakeproof
they could not quakeproof 	I could not be quakeproofing
you could not be quakeproofing
she could not be quakeproofing
we could not be quakeproofing
you could not be quakeproofing
they could not be quakeproofing	I could not have quakeproofed
you could not have quakeproofed
she could not have quakeproofed
we could not have quakeproofed
you could not have quakeproofed
they could not have quakeproofed	I could not have been quakeproofing
you could not have been quakeproofing
she could not have been quakeproofing
we could not have been quakeproofing
you could not have been quakeproofing
they could not have been quakeproofing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I quakeproof?
could you quakeproof?
could she quakeproof?
could we quakeproof?
could you quakeproof?
could they quakeproof? 	could I be quakeproofing?
could you be quakeproofing?
could she be quakeproofing?
could we be quakeproofing?
could you be quakeproofing?
could they be quakeproofing? 	could I have quakeproofed?
could you have quakeproofed?
could she have quakeproofed?
could we have quakeproofed?
could you have quakeproofed?
could they have quakeproofed? 	could I have been quakeproofing?
could you have been quakeproofing?
could she have been quakeproofing?
could we have been quakeproofing?
could you have been quakeproofing?
could they have been quakeproofing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not quakeproof?
could you not quakeproof?
could she not quakeproof?
could we not quakeproof?
could you not quakeproof?
could they not quakeproof? 	could I not be quakeproofing?
could you not be quakeproofing?
could she not be quakeproofing?
could we not be quakeproofing?
could you not be quakeproofing?
could they not be quakeproofing? 	could I not have quakeproofed?
could you not have quakeproofed?
could she not have quakeproofed?
could we not have quakeproofed?
could you not have quakeproofed?
could they not have quakeproofed? 	could I not have been quakeproofing?
could you not have been quakeproofing?
could she not have been quakeproofing?
could we not have been quakeproofing?
could you not have been quakeproofing?
could they not have been quakeproofing?