can waterproof
Regular verb: waterproof - waterproofed- waterproofed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can waterproof
you can waterproof
she can waterproof
we can waterproof
you can waterproof
they can waterproof 	I can be waterproofing
you can be waterproofing
she can be waterproofing
we can be waterproofing
you can be waterproofing
they can be waterproofing	I can have waterproofed
you can have waterproofed
she can have waterproofed
we can have waterproofed
you can have waterproofed
they can have waterproofed	I can have been waterproofing
you can have been waterproofing
she can have been waterproofing
we can have been waterproofing
you can have been waterproofing
they can have been waterproofing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't waterproof
you can't waterproof
she can't waterproof
we can't waterproof
you can't waterproof
they can't waterproof 	I can't be waterproofing
you can't be waterproofing
she can't be waterproofing
we can't be waterproofing
you can't be waterproofing
they can't be waterproofing	I can't have waterproofed
you can't have waterproofed
she can't have waterproofed
we can't have waterproofed
you can't have waterproofed
they can't have waterproofed	I can't have been waterproofing
you can't have been waterproofing
she can't have been waterproofing
we can't have been waterproofing
you can't have been waterproofing
they can't have been waterproofing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I waterproof?
can you waterproof?
can she waterproof?
can we waterproof?
can you waterproof?
can they waterproof? 	can I be waterproofing?
can you be waterproofing?
can she be waterproofing?
can we be waterproofing?
can you be waterproofing?
can they be waterproofing? 	can I have waterproofed?
can you have waterproofed?
can she have waterproofed?
can we have waterproofed?
can you have waterproofed?
can they have waterproofed? 	can I have been waterproofing?
can you have been waterproofing?
can she have been waterproofing?
can we have been waterproofing?
can you have been waterproofing?
can they have been waterproofing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I waterproof?
can't you waterproof?
can't she waterproof?
can't we waterproof?
can't you waterproof?
can't they waterproof? 	can't I be waterproofing?
can't you be waterproofing?
can't she be waterproofing?
can't we be waterproofing?
can't you be waterproofing?
can't they be waterproofing? 	can't I have waterproofed?
can't you have waterproofed?
can't she have waterproofed?
can't we have waterproofed?
can't you have waterproofed?
can't they have waterproofed? 	can't I have been waterproofing?
can't you have been waterproofing?
can't she have been waterproofing?
can't we have been waterproofing?
can't you have been waterproofing?
can't they have been waterproofing?