I ought to devise you ought to devise he ought to devise we ought to devise you ought to devise they ought to devise
V-ing form
I ought to be devising you ought to be devising he ought to be devising we ought to be devising you ought to be devising they ought to be devising
Perfect
I ought to have devised you ought to have devised he ought to have devised we ought to have devised you ought to have devised they ought to have devised
V-ing perfect
I ought to have been devising you ought to have been devising he ought to have been devising we ought to have been devising you ought to have been devising they ought to have been devising
Negation
Simple form
I ought not to devise you ought not to devise he ought not to devise we ought not to devise you ought not to devise they ought not to devise
V-ing form
I ought not to devising you ought not to devising he ought not to devising we ought not to devising you ought not to devising they ought not to devising
Perfect
I ought not to have devised you ought not to have devised he ought not to have devised we ought not to have devised you ought not to have devised they ought not to have devised
V-ing perfect
I ought not to have been devising you ought not to have been devising he ought not to have been devising we ought not to have been devising you ought not to have been devising they ought not to have been devising
Interrogative form
Simple form
ought to I devise? ought to you devise? ought to he devise? ought to we devise? ought to you devise? ought to they devise?
V-ing form
ought to I be devising? ought to you be devising? ought to he be devising? ought to we be devising? ought to you be devising? ought to they be devising?
Perfect
ought to I have devised? ought to you have devised? ought to he have devised? ought to we have devised? ought to you have devised? ought to they have devised?
V-ing perfect
ought to I have been devising? ought to you have been devising? ought to he have been devising? ought to we have been devising? ought to you have been devising? ought to they have been devising?
Interro-negative form
Simple form
ought I not to devise? ought you not to devise? ought he not to devise? ought we not to devise? ought you not to devise? ought they not to devise?
V-ing form
ought I not to be devising? ought you not to be devising? ought he not to be devising? ought we not to be devising? ought you not to be devising? ought they not to be devising?
Perfect
ought I not to have devised? ought you not to have devised? ought he not to have devised? ought we not to have devised? ought you not to have devised? ought they not to have devised?
V-ing perfect
ought I not to have been devising? ought you not to have been devising? ought he not to have been devising? ought we not to have been devising? ought you not to have been devising? ought they not to have been devising?