I ought to unbutton you ought to unbutton he ought to unbutton we ought to unbutton you ought to unbutton they ought to unbutton
V-ing form
I ought to be unbuttoning you ought to be unbuttoning he ought to be unbuttoning we ought to be unbuttoning you ought to be unbuttoning they ought to be unbuttoning
Perfect
I ought to have unbuttoned you ought to have unbuttoned he ought to have unbuttoned we ought to have unbuttoned you ought to have unbuttoned they ought to have unbuttoned
V-ing perfect
I ought to have been unbuttoning you ought to have been unbuttoning he ought to have been unbuttoning we ought to have been unbuttoning you ought to have been unbuttoning they ought to have been unbuttoning
Negation
Simple form
I ought not to unbutton you ought not to unbutton he ought not to unbutton we ought not to unbutton you ought not to unbutton they ought not to unbutton
V-ing form
I ought not to unbuttoning you ought not to unbuttoning he ought not to unbuttoning we ought not to unbuttoning you ought not to unbuttoning they ought not to unbuttoning
Perfect
I ought not to have unbuttoned you ought not to have unbuttoned he ought not to have unbuttoned we ought not to have unbuttoned you ought not to have unbuttoned they ought not to have unbuttoned
V-ing perfect
I ought not to have been unbuttoning you ought not to have been unbuttoning he ought not to have been unbuttoning we ought not to have been unbuttoning you ought not to have been unbuttoning they ought not to have been unbuttoning
Interrogative form
Simple form
ought to I unbutton? ought to you unbutton? ought to he unbutton? ought to we unbutton? ought to you unbutton? ought to they unbutton?
V-ing form
ought to I be unbuttoning? ought to you be unbuttoning? ought to he be unbuttoning? ought to we be unbuttoning? ought to you be unbuttoning? ought to they be unbuttoning?
Perfect
ought to I have unbuttoned? ought to you have unbuttoned? ought to he have unbuttoned? ought to we have unbuttoned? ought to you have unbuttoned? ought to they have unbuttoned?
V-ing perfect
ought to I have been unbuttoning? ought to you have been unbuttoning? ought to he have been unbuttoning? ought to we have been unbuttoning? ought to you have been unbuttoning? ought to they have been unbuttoning?
Interro-negative form
Simple form
ought I not to unbutton? ought you not to unbutton? ought he not to unbutton? ought we not to unbutton? ought you not to unbutton? ought they not to unbutton?
V-ing form
ought I not to be unbuttoning? ought you not to be unbuttoning? ought he not to be unbuttoning? ought we not to be unbuttoning? ought you not to be unbuttoning? ought they not to be unbuttoning?
Perfect
ought I not to have unbuttoned? ought you not to have unbuttoned? ought he not to have unbuttoned? ought we not to have unbuttoned? ought you not to have unbuttoned? ought they not to have unbuttoned?
V-ing perfect
ought I not to have been unbuttoning? ought you not to have been unbuttoning? ought he not to have been unbuttoning? ought we not to have been unbuttoning? ought you not to have been unbuttoning? ought they not to have been unbuttoning?