I ought to change you ought to change he ought to change we ought to change you ought to change they ought to change
V-ing form
I ought to be changing you ought to be changing he ought to be changing we ought to be changing you ought to be changing they ought to be changing
Perfect
I ought to have changed you ought to have changed he ought to have changed we ought to have changed you ought to have changed they ought to have changed
V-ing perfect
I ought to have been changing you ought to have been changing he ought to have been changing we ought to have been changing you ought to have been changing they ought to have been changing
Negation
Simple form
I ought not to change you ought not to change he ought not to change we ought not to change you ought not to change they ought not to change
V-ing form
I ought not to changing you ought not to changing he ought not to changing we ought not to changing you ought not to changing they ought not to changing
Perfect
I ought not to have changed you ought not to have changed he ought not to have changed we ought not to have changed you ought not to have changed they ought not to have changed
V-ing perfect
I ought not to have been changing you ought not to have been changing he ought not to have been changing we ought not to have been changing you ought not to have been changing they ought not to have been changing
Interrogative form
Simple form
ought to I change? ought to you change? ought to he change? ought to we change? ought to you change? ought to they change?
V-ing form
ought to I be changing? ought to you be changing? ought to he be changing? ought to we be changing? ought to you be changing? ought to they be changing?
Perfect
ought to I have changed? ought to you have changed? ought to he have changed? ought to we have changed? ought to you have changed? ought to they have changed?
V-ing perfect
ought to I have been changing? ought to you have been changing? ought to he have been changing? ought to we have been changing? ought to you have been changing? ought to they have been changing?
Interro-negative form
Simple form
ought I not to change? ought you not to change? ought he not to change? ought we not to change? ought you not to change? ought they not to change?
V-ing form
ought I not to be changing? ought you not to be changing? ought he not to be changing? ought we not to be changing? ought you not to be changing? ought they not to be changing?
Perfect
ought I not to have changed? ought you not to have changed? ought he not to have changed? ought we not to have changed? ought you not to have changed? ought they not to have changed?
V-ing perfect
ought I not to have been changing? ought you not to have been changing? ought he not to have been changing? ought we not to have been changing? ought you not to have been changing? ought they not to have been changing?