I ought to dredge you ought to dredge he ought to dredge we ought to dredge you ought to dredge they ought to dredge
V-ing form
I ought to be dredging you ought to be dredging he ought to be dredging we ought to be dredging you ought to be dredging they ought to be dredging
Perfect
I ought to have dredged you ought to have dredged he ought to have dredged we ought to have dredged you ought to have dredged they ought to have dredged
V-ing perfect
I ought to have been dredging you ought to have been dredging he ought to have been dredging we ought to have been dredging you ought to have been dredging they ought to have been dredging
Negation
Simple form
I ought not to dredge you ought not to dredge he ought not to dredge we ought not to dredge you ought not to dredge they ought not to dredge
V-ing form
I ought not to dredging you ought not to dredging he ought not to dredging we ought not to dredging you ought not to dredging they ought not to dredging
Perfect
I ought not to have dredged you ought not to have dredged he ought not to have dredged we ought not to have dredged you ought not to have dredged they ought not to have dredged
V-ing perfect
I ought not to have been dredging you ought not to have been dredging he ought not to have been dredging we ought not to have been dredging you ought not to have been dredging they ought not to have been dredging
Interrogative form
Simple form
ought to I dredge? ought to you dredge? ought to he dredge? ought to we dredge? ought to you dredge? ought to they dredge?
V-ing form
ought to I be dredging? ought to you be dredging? ought to he be dredging? ought to we be dredging? ought to you be dredging? ought to they be dredging?
Perfect
ought to I have dredged? ought to you have dredged? ought to he have dredged? ought to we have dredged? ought to you have dredged? ought to they have dredged?
V-ing perfect
ought to I have been dredging? ought to you have been dredging? ought to he have been dredging? ought to we have been dredging? ought to you have been dredging? ought to they have been dredging?
Interro-negative form
Simple form
ought I not to dredge? ought you not to dredge? ought he not to dredge? ought we not to dredge? ought you not to dredge? ought they not to dredge?
V-ing form
ought I not to be dredging? ought you not to be dredging? ought he not to be dredging? ought we not to be dredging? ought you not to be dredging? ought they not to be dredging?
Perfect
ought I not to have dredged? ought you not to have dredged? ought he not to have dredged? ought we not to have dredged? ought you not to have dredged? ought they not to have dredged?
V-ing perfect
ought I not to have been dredging? ought you not to have been dredging? ought he not to have been dredging? ought we not to have been dredging? ought you not to have been dredging? ought they not to have been dredging?