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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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?