I ought to attend you ought to attend she ought to attend we ought to attend you ought to attend they ought to attend
V-ing form
I ought to be attending you ought to be attending she ought to be attending we ought to be attending you ought to be attending they ought to be attending
Perfect
I ought to have attended you ought to have attended she ought to have attended we ought to have attended you ought to have attended they ought to have attended
V-ing perfect
I ought to have been attending you ought to have been attending she ought to have been attending we ought to have been attending you ought to have been attending they ought to have been attending
Negation
Simple form
I ought not to attend you ought not to attend she ought not to attend we ought not to attend you ought not to attend they ought not to attend
V-ing form
I ought not to attending you ought not to attending she ought not to attending we ought not to attending you ought not to attending they ought not to attending
Perfect
I ought not to have attended you ought not to have attended she ought not to have attended we ought not to have attended you ought not to have attended they ought not to have attended
V-ing perfect
I ought not to have been attending you ought not to have been attending she ought not to have been attending we ought not to have been attending you ought not to have been attending they ought not to have been attending
Interrogative form
Simple form
ought to I attend? ought to you attend? ought to she attend? ought to we attend? ought to you attend? ought to they attend?
V-ing form
ought to I be attending? ought to you be attending? ought to she be attending? ought to we be attending? ought to you be attending? ought to they be attending?
Perfect
ought to I have attended? ought to you have attended? ought to she have attended? ought to we have attended? ought to you have attended? ought to they have attended?
V-ing perfect
ought to I have been attending? ought to you have been attending? ought to she have been attending? ought to we have been attending? ought to you have been attending? ought to they have been attending?
Interro-negative form
Simple form
ought I not to attend? ought you not to attend? ought she not to attend? ought we not to attend? ought you not to attend? ought they not to attend?
V-ing form
ought I not to be attending? ought you not to be attending? ought she not to be attending? ought we not to be attending? ought you not to be attending? ought they not to be attending?
Perfect
ought I not to have attended? ought you not to have attended? ought she not to have attended? ought we not to have attended? ought you not to have attended? ought they not to have attended?
V-ing perfect
ought I not to have been attending? ought you not to have been attending? ought she not to have been attending? ought we not to have been attending? ought you not to have been attending? ought they not to have been attending?