English verb conjugation
OUGHT TO TRILL

Regular verb: trill - trilled - trilled

Affirmation

Simple form	V-ing form
I ought to trill you ought to trill he ought to trill we ought to trill you ought to trill they ought to trill	I ought to be trilling you ought to be trilling he ought to be trilling we ought to be trilling you ought to be trilling they ought to be trilling
Perfect	V-ing perfect
I ought to have trilled you ought to have trilled he ought to have trilled we ought to have trilled you ought to have trilled they ought to have trilled	I ought to have been trilling you ought to have been trilling he ought to have been trilling we ought to have been trilling you ought to have been trilling they ought to have been trilling

Negation

Simple form	V-ing form
I oughtn't to trill you oughtn't to trill he oughtn't to trill we oughtn't to trill you oughtn't to trill they oughtn't to trill	I oughtn't to be trilling you oughtn't to be trilling he oughtn't to be trilling we oughtn't to be trilling you oughtn't to be trilling they oughtn't to be trilling
Perfect	V-ing perfect
I oughtn't to have trilled you oughtn't to have trilled he oughtn't to have trilled we oughtn't to have trilled you oughtn't to have trilled they oughtn't to have trilled	I oughtn't to have been trilling you oughtn't to have been trilling he oughtn't to have been trilling we oughtn't to have been trilling you oughtn't to have been trilling they oughtn't to have been trilling

Interrogative form

Simple form	V-ing form
ought to I trill? ought to you trill? ought to he trill? ought to we trill? ought to you trill? ought to they trill?	ought to I be trilling? ought to you be trilling? ought to he be trilling? ought to we be trilling? ought to you be trilling? ought to they be trilling?
Perfect	V-ing perfect
ought to I have trilled? ought to you have trilled? ought to he have trilled? ought to we have trilled? ought to you have trilled? ought to they have trilled?	ought to I have been trilling? ought to you have been trilling? ought to he have been trilling? ought to we have been trilling? ought to you have been trilling? ought to they have been trilling?

Interro-negative form

Simple form	V-ing form
oughtn't I to trill? oughtn't you to trill? oughtn't he to trill? oughtn't we to trill? oughtn't you to trill? oughtn't they to trill?	oughtn't I to be trilling? oughtn't you to be trilling? oughtn't he to be trilling? oughtn't we to be trilling? oughtn't you to be trilling? oughtn't they to be trilling?
Perfect	V-ing perfect
oughtn't I to have trilled? oughtn't you to have trilled? oughtn't he to have trilled? oughtn't we to have trilled? oughtn't you to have trilled? oughtn't they to have trilled?	oughtn't I to have been trilling? oughtn't you to have been trilling? oughtn't he to have been trilling? oughtn't we to have been trilling? oughtn't you to have been trilling? oughtn't they to have been trilling?