English verb conjugation
OUGHT TO TRAIL

Regular verb: trail - trailed - trailed

Affirmation

Simple form	V-ing form
I ought to trail you ought to trail she ought to trail we ought to trail you ought to trail they ought to trail	I ought to be trailing you ought to be trailing she ought to be trailing we ought to be trailing you ought to be trailing they ought to be trailing
Perfect	V-ing perfect
I ought to have trailed you ought to have trailed she ought to have trailed we ought to have trailed you ought to have trailed they ought to have trailed	I ought to have been trailing you ought to have been trailing she ought to have been trailing we ought to have been trailing you ought to have been trailing they ought to have been trailing

Negation

Simple form	V-ing form
I oughtn't to trail you oughtn't to trail she oughtn't to trail we oughtn't to trail you oughtn't to trail they oughtn't to trail	I oughtn't to be trailing you oughtn't to be trailing she oughtn't to be trailing we oughtn't to be trailing you oughtn't to be trailing they oughtn't to be trailing
Perfect	V-ing perfect
I oughtn't to have trailed you oughtn't to have trailed she oughtn't to have trailed we oughtn't to have trailed you oughtn't to have trailed they oughtn't to have trailed	I oughtn't to have been trailing you oughtn't to have been trailing she oughtn't to have been trailing we oughtn't to have been trailing you oughtn't to have been trailing they oughtn't to have been trailing

Interrogative form

Simple form	V-ing form
ought to I trail? ought to you trail? ought to she trail? ought to we trail? ought to you trail? ought to they trail?	ought to I be trailing? ought to you be trailing? ought to she be trailing? ought to we be trailing? ought to you be trailing? ought to they be trailing?
Perfect	V-ing perfect
ought to I have trailed? ought to you have trailed? ought to she have trailed? ought to we have trailed? ought to you have trailed? ought to they have trailed?	ought to I have been trailing? ought to you have been trailing? ought to she have been trailing? ought to we have been trailing? ought to you have been trailing? ought to they have been trailing?

Interro-negative form

Simple form	V-ing form
oughtn't I to trail? oughtn't you to trail? oughtn't she to trail? oughtn't we to trail? oughtn't you to trail? oughtn't they to trail?	oughtn't I to be trailing? oughtn't you to be trailing? oughtn't she to be trailing? oughtn't we to be trailing? oughtn't you to be trailing? oughtn't they to be trailing?
Perfect	V-ing perfect
oughtn't I to have trailed? oughtn't you to have trailed? oughtn't she to have trailed? oughtn't we to have trailed? oughtn't you to have trailed? oughtn't they to have trailed?	oughtn't I to have been trailing? oughtn't you to have been trailing? oughtn't she to have been trailing? oughtn't we to have been trailing? oughtn't you to have been trailing? oughtn't they to have been trailing?