English verb conjugation
OUGHT TO TREE

Regular verb: tree - treed - treed

Affirmation

Simple form	V-ing form
I ought to tree you ought to tree he ought to tree we ought to tree you ought to tree they ought to tree	I ought to be treeing you ought to be treeing he ought to be treeing we ought to be treeing you ought to be treeing they ought to be treeing
Perfect	V-ing perfect
I ought to have treed you ought to have treed he ought to have treed we ought to have treed you ought to have treed they ought to have treed	I ought to have been treeing you ought to have been treeing he ought to have been treeing we ought to have been treeing you ought to have been treeing they ought to have been treeing

Negation

Simple form	V-ing form
I oughtn't to tree you oughtn't to tree he oughtn't to tree we oughtn't to tree you oughtn't to tree they oughtn't to tree	I oughtn't to be treeing you oughtn't to be treeing he oughtn't to be treeing we oughtn't to be treeing you oughtn't to be treeing they oughtn't to be treeing
Perfect	V-ing perfect
I oughtn't to have treed you oughtn't to have treed he oughtn't to have treed we oughtn't to have treed you oughtn't to have treed they oughtn't to have treed	I oughtn't to have been treeing you oughtn't to have been treeing he oughtn't to have been treeing we oughtn't to have been treeing you oughtn't to have been treeing they oughtn't to have been treeing

Interrogative form

Simple form	V-ing form
ought to I tree? ought to you tree? ought to he tree? ought to we tree? ought to you tree? ought to they tree?	ought to I be treeing? ought to you be treeing? ought to he be treeing? ought to we be treeing? ought to you be treeing? ought to they be treeing?
Perfect	V-ing perfect
ought to I have treed? ought to you have treed? ought to he have treed? ought to we have treed? ought to you have treed? ought to they have treed?	ought to I have been treeing? ought to you have been treeing? ought to he have been treeing? ought to we have been treeing? ought to you have been treeing? ought to they have been treeing?

Interro-negative form

Simple form	V-ing form
oughtn't I to tree? oughtn't you to tree? oughtn't he to tree? oughtn't we to tree? oughtn't you to tree? oughtn't they to tree?	oughtn't I to be treeing? oughtn't you to be treeing? oughtn't he to be treeing? oughtn't we to be treeing? oughtn't you to be treeing? oughtn't they to be treeing?
Perfect	V-ing perfect
oughtn't I to have treed? oughtn't you to have treed? oughtn't he to have treed? oughtn't we to have treed? oughtn't you to have treed? oughtn't they to have treed?	oughtn't I to have been treeing? oughtn't you to have been treeing? oughtn't he to have been treeing? oughtn't we to have been treeing? oughtn't you to have been treeing? oughtn't they to have been treeing?