I ought to attribute you ought to attribute she 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 she 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 she 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 she 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 ought not to attribute you ought not to attribute she ought not to attribute we ought not to attribute you ought not to attribute they ought not to attribute
V-ing form
I ought not to attributing you ought not to attributing she ought not to attributing we ought not to attributing you ought not to attributing they ought not to attributing
Perfect
I ought not to have attributed you ought not to have attributed she ought not to have attributed we ought not to have attributed you ought not to have attributed they ought not to have attributed
V-ing perfect
I ought not to have been attributing you ought not to have been attributing she ought not to have been attributing we ought not to have been attributing you ought not to have been attributing they ought not to have been attributing
Interrogative form
Simple form
ought to I attribute? ought to you attribute? ought to she 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 she 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 she 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 she 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
ought I not to attribute? ought you not to attribute? ought she not to attribute? ought we not to attribute? ought you not to attribute? ought they not to attribute?
V-ing form
ought I not to be attributing? ought you not to be attributing? ought she not to be attributing? ought we not to be attributing? ought you not to be attributing? ought they not to be attributing?
Perfect
ought I not to have attributed? ought you not to have attributed? ought she not to have attributed? ought we not to have attributed? ought you not to have attributed? ought they not to have attributed?
V-ing perfect
ought I not to have been attributing? ought you not to have been attributing? ought she not to have been attributing? ought we not to have been attributing? ought you not to have been attributing? ought they not to have been attributing?