English verb conjugation
OUGHT TO CONCAVE

Regular verb: concave - concaved - concaved

Affirmation

Simple form	V-ing form
I ought to concave you ought to concave he ought to concave we ought to concave you ought to concave they ought to concave	I ought to be concaving you ought to be concaving he ought to be concaving we ought to be concaving you ought to be concaving they ought to be concaving
Perfect	V-ing perfect
I ought to have concaved you ought to have concaved he ought to have concaved we ought to have concaved you ought to have concaved they ought to have concaved	I ought to have been concaving you ought to have been concaving he ought to have been concaving we ought to have been concaving you ought to have been concaving they ought to have been concaving

Negation

Simple form	V-ing form
I oughtn't to concave you oughtn't to concave he oughtn't to concave we oughtn't to concave you oughtn't to concave they oughtn't to concave	I oughtn't to be concaving you oughtn't to be concaving he oughtn't to be concaving we oughtn't to be concaving you oughtn't to be concaving they oughtn't to be concaving
Perfect	V-ing perfect
I oughtn't to have concaved you oughtn't to have concaved he oughtn't to have concaved we oughtn't to have concaved you oughtn't to have concaved they oughtn't to have concaved	I oughtn't to have been concaving you oughtn't to have been concaving he oughtn't to have been concaving we oughtn't to have been concaving you oughtn't to have been concaving they oughtn't to have been concaving

Interrogative form

Simple form	V-ing form
ought to I concave? ought to you concave? ought to he concave? ought to we concave? ought to you concave? ought to they concave?	ought to I be concaving? ought to you be concaving? ought to he be concaving? ought to we be concaving? ought to you be concaving? ought to they be concaving?
Perfect	V-ing perfect
ought to I have concaved? ought to you have concaved? ought to he have concaved? ought to we have concaved? ought to you have concaved? ought to they have concaved?	ought to I have been concaving? ought to you have been concaving? ought to he have been concaving? ought to we have been concaving? ought to you have been concaving? ought to they have been concaving?

Interro-negative form

Simple form	V-ing form
oughtn't I to concave? oughtn't you to concave? oughtn't he to concave? oughtn't we to concave? oughtn't you to concave? oughtn't they to concave?	oughtn't I to be concaving? oughtn't you to be concaving? oughtn't he to be concaving? oughtn't we to be concaving? oughtn't you to be concaving? oughtn't they to be concaving?
Perfect	V-ing perfect
oughtn't I to have concaved? oughtn't you to have concaved? oughtn't he to have concaved? oughtn't we to have concaved? oughtn't you to have concaved? oughtn't they to have concaved?	oughtn't I to have been concaving? oughtn't you to have been concaving? oughtn't he to have been concaving? oughtn't we to have been concaving? oughtn't you to have been concaving? oughtn't they to have been concaving?