I ought to alert you ought to alert she ought to alert we ought to alert you ought to alert they ought to alert
V-ing form
I ought to be alerting you ought to be alerting she ought to be alerting we ought to be alerting you ought to be alerting they ought to be alerting
Perfect
I ought to have alerted you ought to have alerted she ought to have alerted we ought to have alerted you ought to have alerted they ought to have alerted
V-ing perfect
I ought to have been alerting you ought to have been alerting she ought to have been alerting we ought to have been alerting you ought to have been alerting they ought to have been alerting
Negation
Simple form
I ought not to alert you ought not to alert she ought not to alert we ought not to alert you ought not to alert they ought not to alert
V-ing form
I ought not to alerting you ought not to alerting she ought not to alerting we ought not to alerting you ought not to alerting they ought not to alerting
Perfect
I ought not to have alerted you ought not to have alerted she ought not to have alerted we ought not to have alerted you ought not to have alerted they ought not to have alerted
V-ing perfect
I ought not to have been alerting you ought not to have been alerting she ought not to have been alerting we ought not to have been alerting you ought not to have been alerting they ought not to have been alerting
Interrogative form
Simple form
ought to I alert? ought to you alert? ought to she alert? ought to we alert? ought to you alert? ought to they alert?
V-ing form
ought to I be alerting? ought to you be alerting? ought to she be alerting? ought to we be alerting? ought to you be alerting? ought to they be alerting?
Perfect
ought to I have alerted? ought to you have alerted? ought to she have alerted? ought to we have alerted? ought to you have alerted? ought to they have alerted?
V-ing perfect
ought to I have been alerting? ought to you have been alerting? ought to she have been alerting? ought to we have been alerting? ought to you have been alerting? ought to they have been alerting?
Interro-negative form
Simple form
ought I not to alert? ought you not to alert? ought she not to alert? ought we not to alert? ought you not to alert? ought they not to alert?
V-ing form
ought I not to be alerting? ought you not to be alerting? ought she not to be alerting? ought we not to be alerting? ought you not to be alerting? ought they not to be alerting?
Perfect
ought I not to have alerted? ought you not to have alerted? ought she not to have alerted? ought we not to have alerted? ought you not to have alerted? ought they not to have alerted?
V-ing perfect
ought I not to have been alerting? ought you not to have been alerting? ought she not to have been alerting? ought we not to have been alerting? ought you not to have been alerting? ought they not to have been alerting?