English verb conjugation
OUGHT TO SUBTEND

Regular verb: subtend - subtended - subtended

Affirmation

Simple form	V-ing form
I ought to subtend you ought to subtend he ought to subtend we ought to subtend you ought to subtend they ought to subtend	I ought to be subtending you ought to be subtending he ought to be subtending we ought to be subtending you ought to be subtending they ought to be subtending
Perfect	V-ing perfect
I ought to have subtended you ought to have subtended he ought to have subtended we ought to have subtended you ought to have subtended they ought to have subtended	I ought to have been subtending you ought to have been subtending he ought to have been subtending we ought to have been subtending you ought to have been subtending they ought to have been subtending

Negation

Simple form	V-ing form
I oughtn't to subtend you oughtn't to subtend he oughtn't to subtend we oughtn't to subtend you oughtn't to subtend they oughtn't to subtend	I oughtn't to be subtending you oughtn't to be subtending he oughtn't to be subtending we oughtn't to be subtending you oughtn't to be subtending they oughtn't to be subtending
Perfect	V-ing perfect
I oughtn't to have subtended you oughtn't to have subtended he oughtn't to have subtended we oughtn't to have subtended you oughtn't to have subtended they oughtn't to have subtended	I oughtn't to have been subtending you oughtn't to have been subtending he oughtn't to have been subtending we oughtn't to have been subtending you oughtn't to have been subtending they oughtn't to have been subtending

Interrogative form

Simple form	V-ing form
ought to I subtend? ought to you subtend? ought to he subtend? ought to we subtend? ought to you subtend? ought to they subtend?	ought to I be subtending? ought to you be subtending? ought to he be subtending? ought to we be subtending? ought to you be subtending? ought to they be subtending?
Perfect	V-ing perfect
ought to I have subtended? ought to you have subtended? ought to he have subtended? ought to we have subtended? ought to you have subtended? ought to they have subtended?	ought to I have been subtending? ought to you have been subtending? ought to he have been subtending? ought to we have been subtending? ought to you have been subtending? ought to they have been subtending?

Interro-negative form

Simple form	V-ing form
oughtn't I to subtend? oughtn't you to subtend? oughtn't he to subtend? oughtn't we to subtend? oughtn't you to subtend? oughtn't they to subtend?	oughtn't I to be subtending? oughtn't you to be subtending? oughtn't he to be subtending? oughtn't we to be subtending? oughtn't you to be subtending? oughtn't they to be subtending?
Perfect	V-ing perfect
oughtn't I to have subtended? oughtn't you to have subtended? oughtn't he to have subtended? oughtn't we to have subtended? oughtn't you to have subtended? oughtn't they to have subtended?	oughtn't I to have been subtending? oughtn't you to have been subtending? oughtn't he to have been subtending? oughtn't we to have been subtending? oughtn't you to have been subtending? oughtn't they to have been subtending?