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