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