ought to waterproof
Regular verb: waterproof - waterproofed- waterproofed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to waterproof
you ought to waterproof
he ought to waterproof
we ought to waterproof
you ought to waterproof
they ought to waterproof 	I ought to be waterproofing
you ought to be waterproofing
he ought to be waterproofing
we ought to be waterproofing
you ought to be waterproofing
they ought to be waterproofing	I ought to have waterproofed
you ought to have waterproofed
he ought to have waterproofed
we ought to have waterproofed
you ought to have waterproofed
they ought to have waterproofed	I ought to have been waterproofing
you ought to have been waterproofing
he ought to have been waterproofing
we ought to have been waterproofing
you ought to have been waterproofing
they ought to have been waterproofing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to waterproof
you ought not to waterproof
he ought not to waterproof
we ought not to waterproof
you ought not to waterproof
they ought not to waterproof 	I ought not to waterproofing
you ought not to waterproofing
he ought not to waterproofing
we ought not to waterproofing
you ought not to waterproofing
they ought not to waterproofing	I ought not to have waterproofed
you ought not to have waterproofed
he ought not to have waterproofed
we ought not to have waterproofed
you ought not to have waterproofed
they ought not to have waterproofed	I ought not to have been waterproofing
you ought not to have been waterproofing
he ought not to have been waterproofing
we ought not to have been waterproofing
you ought not to have been waterproofing
they ought not to have been waterproofing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I waterproof?
ought to you waterproof?
ought to he waterproof?
ought to we waterproof?
ought to you waterproof?
ought to they waterproof? 	ought to I be waterproofing?
ought to you be waterproofing?
ought to he be waterproofing?
ought to we be waterproofing?
ought to you be waterproofing?
ought to they be waterproofing? 	ought to I have waterproofed?
ought to you have waterproofed?
ought to he have waterproofed?
ought to we have waterproofed?
ought to you have waterproofed?
ought to they have waterproofed? 	ought to I have been waterproofing?
ought to you have been waterproofing?
ought to he have been waterproofing?
ought to we have been waterproofing?
ought to you have been waterproofing?
ought to they have been waterproofing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to waterproof?
ought you not to waterproof?
ought he not to waterproof?
ought we not to waterproof?
ought you not to waterproof?
ought they not to waterproof? 	ought I not to be waterproofing?
ought you not to be waterproofing?
ought he not to be waterproofing?
ought we not to be waterproofing?
ought you not to be waterproofing?
ought they not to be waterproofing? 	ought I not to have waterproofed?
ought you not to have waterproofed?
ought he not to have waterproofed?
ought we not to have waterproofed?
ought you not to have waterproofed?
ought they not to have waterproofed? 	ought I not to have been waterproofing?
ought you not to have been waterproofing?
ought he not to have been waterproofing?
ought we not to have been waterproofing?
ought you not to have been waterproofing?
ought they not to have been waterproofing?