Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I ought to contend contend you ought to contend contend she ought to contend contend we ought to contend contend you ought to contend contend they ought to contend contend
V-ing form
I ought to be contend contending you ought to be contend contending she ought to be contend contending we ought to be contend contending you ought to be contend contending they ought to be contend contending
Perfect
I ought to have contend contended you ought to have contend contended she ought to have contend contended we ought to have contend contended you ought to have contend contended they ought to have contend contended
V-ing perfect
I ought to have been contend contending you ought to have been contend contending she ought to have been contend contending we ought to have been contend contending you ought to have been contend contending they ought to have been contend contending
Negation
Simple form
I oughtn't to contend contend you oughtn't to contend contend she oughtn't to contend contend we oughtn't to contend contend you oughtn't to contend contend they oughtn't to contend contend
V-ing form
I oughtn't to be contend contending you oughtn't to be contend contending she oughtn't to be contend contending we oughtn't to be contend contending you oughtn't to be contend contending they oughtn't to be contend contending
Perfect
I oughtn't to have contend contended you oughtn't to have contend contended she oughtn't to have contend contended we oughtn't to have contend contended you oughtn't to have contend contended they oughtn't to have contend contended
V-ing perfect
I oughtn't to have been contend contending you oughtn't to have been contend contending she oughtn't to have been contend contending we oughtn't to have been contend contending you oughtn't to have been contend contending they oughtn't to have been contend contending
Interrogative form
Simple form
ought to I contend contend? ought to you contend contend? ought to she contend contend? ought to we contend contend? ought to you contend contend? ought to they contend contend?
V-ing form
ought to I be contend contending? ought to you be contend contending? ought to she be contend contending? ought to we be contend contending? ought to you be contend contending? ought to they be contend contending?
Perfect
ought to I have contend contended? ought to you have contend contended? ought to she have contend contended? ought to we have contend contended? ought to you have contend contended? ought to they have contend contended?
V-ing perfect
ought to I have been contend contending? ought to you have been contend contending? ought to she have been contend contending? ought to we have been contend contending? ought to you have been contend contending? ought to they have been contend contending?
Interro-negative form
Simple form
oughtn't I to contend contend? oughtn't you to contend contend? oughtn't she to contend contend? oughtn't we to contend contend? oughtn't you to contend contend? oughtn't they to contend contend?
V-ing form
oughtn't I to be contend contending? oughtn't you to be contend contending? oughtn't she to be contend contending? oughtn't we to be contend contending? oughtn't you to be contend contending? oughtn't they to be contend contending?
Perfect
oughtn't I to have contend contended? oughtn't you to have contend contended? oughtn't she to have contend contended? oughtn't we to have contend contended? oughtn't you to have contend contended? oughtn't they to have contend contended?
V-ing perfect
oughtn't I to have been contend contending? oughtn't you to have been contend contending? oughtn't she to have been contend contending? oughtn't we to have been contend contending? oughtn't you to have been contend contending? oughtn't they to have been contend contending?