I ought to invent you ought to invent she ought to invent we ought to invent you ought to invent they ought to invent
V-ing form
I ought to be inventing you ought to be inventing she ought to be inventing we ought to be inventing you ought to be inventing they ought to be inventing
Perfect
I ought to have invented you ought to have invented she ought to have invented we ought to have invented you ought to have invented they ought to have invented
V-ing perfect
I ought to have been inventing you ought to have been inventing she ought to have been inventing we ought to have been inventing you ought to have been inventing they ought to have been inventing
Negation
Simple form
I ought not to invent you ought not to invent she ought not to invent we ought not to invent you ought not to invent they ought not to invent
V-ing form
I ought not to inventing you ought not to inventing she ought not to inventing we ought not to inventing you ought not to inventing they ought not to inventing
Perfect
I ought not to have invented you ought not to have invented she ought not to have invented we ought not to have invented you ought not to have invented they ought not to have invented
V-ing perfect
I ought not to have been inventing you ought not to have been inventing she ought not to have been inventing we ought not to have been inventing you ought not to have been inventing they ought not to have been inventing
Interrogative form
Simple form
ought to I invent? ought to you invent? ought to she invent? ought to we invent? ought to you invent? ought to they invent?
V-ing form
ought to I be inventing? ought to you be inventing? ought to she be inventing? ought to we be inventing? ought to you be inventing? ought to they be inventing?
Perfect
ought to I have invented? ought to you have invented? ought to she have invented? ought to we have invented? ought to you have invented? ought to they have invented?
V-ing perfect
ought to I have been inventing? ought to you have been inventing? ought to she have been inventing? ought to we have been inventing? ought to you have been inventing? ought to they have been inventing?
Interro-negative form
Simple form
ought I not to invent? ought you not to invent? ought she not to invent? ought we not to invent? ought you not to invent? ought they not to invent?
V-ing form
ought I not to be inventing? ought you not to be inventing? ought she not to be inventing? ought we not to be inventing? ought you not to be inventing? ought they not to be inventing?
Perfect
ought I not to have invented? ought you not to have invented? ought she not to have invented? ought we not to have invented? ought you not to have invented? ought they not to have invented?
V-ing perfect
ought I not to have been inventing? ought you not to have been inventing? ought she not to have been inventing? ought we not to have been inventing? ought you not to have been inventing? ought they not to have been inventing?