English verb conjugation
OUGHT TO FAIL

Regular verb: fail - failed - failed

Affirmation

Simple form	V-ing form
I ought to fail you ought to fail she ought to fail we ought to fail you ought to fail they ought to fail	I ought to be failing you ought to be failing she ought to be failing we ought to be failing you ought to be failing they ought to be failing
Perfect	V-ing perfect
I ought to have failed you ought to have failed she ought to have failed we ought to have failed you ought to have failed they ought to have failed	I ought to have been failing you ought to have been failing she ought to have been failing we ought to have been failing you ought to have been failing they ought to have been failing

Negation

Simple form	V-ing form
I oughtn't to fail you oughtn't to fail she oughtn't to fail we oughtn't to fail you oughtn't to fail they oughtn't to fail	I oughtn't to be failing you oughtn't to be failing she oughtn't to be failing we oughtn't to be failing you oughtn't to be failing they oughtn't to be failing
Perfect	V-ing perfect
I oughtn't to have failed you oughtn't to have failed she oughtn't to have failed we oughtn't to have failed you oughtn't to have failed they oughtn't to have failed	I oughtn't to have been failing you oughtn't to have been failing she oughtn't to have been failing we oughtn't to have been failing you oughtn't to have been failing they oughtn't to have been failing

Interrogative form

Simple form	V-ing form
ought to I fail? ought to you fail? ought to she fail? ought to we fail? ought to you fail? ought to they fail?	ought to I be failing? ought to you be failing? ought to she be failing? ought to we be failing? ought to you be failing? ought to they be failing?
Perfect	V-ing perfect
ought to I have failed? ought to you have failed? ought to she have failed? ought to we have failed? ought to you have failed? ought to they have failed?	ought to I have been failing? ought to you have been failing? ought to she have been failing? ought to we have been failing? ought to you have been failing? ought to they have been failing?

Interro-negative form

Simple form	V-ing form
oughtn't I to fail? oughtn't you to fail? oughtn't she to fail? oughtn't we to fail? oughtn't you to fail? oughtn't they to fail?	oughtn't I to be failing? oughtn't you to be failing? oughtn't she to be failing? oughtn't we to be failing? oughtn't you to be failing? oughtn't they to be failing?
Perfect	V-ing perfect
oughtn't I to have failed? oughtn't you to have failed? oughtn't she to have failed? oughtn't we to have failed? oughtn't you to have failed? oughtn't they to have failed?	oughtn't I to have been failing? oughtn't you to have been failing? oughtn't she to have been failing? oughtn't we to have been failing? oughtn't you to have been failing? oughtn't they to have been failing?