I ought to install you ought to install he ought to install we ought to install you ought to install they ought to install
V-ing form
I ought to be installing you ought to be installing he ought to be installing we ought to be installing you ought to be installing they ought to be installing
Perfect
I ought to have installed you ought to have installed he ought to have installed we ought to have installed you ought to have installed they ought to have installed
V-ing perfect
I ought to have been installing you ought to have been installing he ought to have been installing we ought to have been installing you ought to have been installing they ought to have been installing
Negation
Simple form
I oughtn't to install you oughtn't to install he oughtn't to install we oughtn't to install you oughtn't to install they oughtn't to install
V-ing form
I oughtn't to be installing you oughtn't to be installing he oughtn't to be installing we oughtn't to be installing you oughtn't to be installing they oughtn't to be installing
Perfect
I oughtn't to have installed you oughtn't to have installed he oughtn't to have installed we oughtn't to have installed you oughtn't to have installed they oughtn't to have installed
V-ing perfect
I oughtn't to have been installing you oughtn't to have been installing he oughtn't to have been installing we oughtn't to have been installing you oughtn't to have been installing they oughtn't to have been installing
Interrogative form
Simple form
ought to I install? ought to you install? ought to he install? ought to we install? ought to you install? ought to they install?
V-ing form
ought to I be installing? ought to you be installing? ought to he be installing? ought to we be installing? ought to you be installing? ought to they be installing?
Perfect
ought to I have installed? ought to you have installed? ought to he have installed? ought to we have installed? ought to you have installed? ought to they have installed?
V-ing perfect
ought to I have been installing? ought to you have been installing? ought to he have been installing? ought to we have been installing? ought to you have been installing? ought to they have been installing?
Interro-negative form
Simple form
oughtn't I to install? oughtn't you to install? oughtn't he to install? oughtn't we to install? oughtn't you to install? oughtn't they to install?
V-ing form
oughtn't I to be installing? oughtn't you to be installing? oughtn't he to be installing? oughtn't we to be installing? oughtn't you to be installing? oughtn't they to be installing?
Perfect
oughtn't I to have installed? oughtn't you to have installed? oughtn't he to have installed? oughtn't we to have installed? oughtn't you to have installed? oughtn't they to have installed?
V-ing perfect
oughtn't I to have been installing? oughtn't you to have been installing? oughtn't he to have been installing? oughtn't we to have been installing? oughtn't you to have been installing? oughtn't they to have been installing?