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