English verb conjugation
OUGHT TO WATERPROOF

Regular verb: waterproof - waterproofed - waterproofed

Affirmation

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

Interrogative form

Simple form	V-ing form
ought to I waterproof? ought to you waterproof? ought to she 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 she be waterproofing? ought to we be waterproofing? ought to you be waterproofing? ought to they be waterproofing?
Perfect	V-ing perfect
ought to I have waterproofed? ought to you have waterproofed? ought to she 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 she 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
oughtn't I to waterproof? oughtn't you to waterproof? oughtn't she to waterproof? oughtn't we to waterproof? oughtn't you to waterproof? oughtn't they to waterproof?	oughtn't I to be waterproofing? oughtn't you to be waterproofing? oughtn't she to be waterproofing? oughtn't we to be waterproofing? oughtn't you to be waterproofing? oughtn't they to be waterproofing?
Perfect	V-ing perfect
oughtn't I to have waterproofed? oughtn't you to have waterproofed? oughtn't she to have waterproofed? oughtn't we to have waterproofed? oughtn't you to have waterproofed? oughtn't they to have waterproofed?	oughtn't I to have been waterproofing? oughtn't you to have been waterproofing? oughtn't she to have been waterproofing? oughtn't we to have been waterproofing? oughtn't you to have been waterproofing? oughtn't they to have been waterproofing?