English verb conjugation
OUGHT TO PREBILL

Regular verb: prebill - prebilled - prebilled

Affirmation

Simple form	V-ing form
I ought to prebill you ought to prebill he ought to prebill we ought to prebill you ought to prebill they ought to prebill	I ought to be prebilling you ought to be prebilling he ought to be prebilling we ought to be prebilling you ought to be prebilling they ought to be prebilling
Perfect	V-ing perfect
I ought to have prebilled you ought to have prebilled he ought to have prebilled we ought to have prebilled you ought to have prebilled they ought to have prebilled	I ought to have been prebilling you ought to have been prebilling he ought to have been prebilling we ought to have been prebilling you ought to have been prebilling they ought to have been prebilling

Negation

Simple form	V-ing form
I oughtn't to prebill you oughtn't to prebill he oughtn't to prebill we oughtn't to prebill you oughtn't to prebill they oughtn't to prebill	I oughtn't to be prebilling you oughtn't to be prebilling he oughtn't to be prebilling we oughtn't to be prebilling you oughtn't to be prebilling they oughtn't to be prebilling
Perfect	V-ing perfect
I oughtn't to have prebilled you oughtn't to have prebilled he oughtn't to have prebilled we oughtn't to have prebilled you oughtn't to have prebilled they oughtn't to have prebilled	I oughtn't to have been prebilling you oughtn't to have been prebilling he oughtn't to have been prebilling we oughtn't to have been prebilling you oughtn't to have been prebilling they oughtn't to have been prebilling

Interrogative form

Simple form	V-ing form
ought to I prebill? ought to you prebill? ought to he prebill? ought to we prebill? ought to you prebill? ought to they prebill?	ought to I be prebilling? ought to you be prebilling? ought to he be prebilling? ought to we be prebilling? ought to you be prebilling? ought to they be prebilling?
Perfect	V-ing perfect
ought to I have prebilled? ought to you have prebilled? ought to he have prebilled? ought to we have prebilled? ought to you have prebilled? ought to they have prebilled?	ought to I have been prebilling? ought to you have been prebilling? ought to he have been prebilling? ought to we have been prebilling? ought to you have been prebilling? ought to they have been prebilling?

Interro-negative form

Simple form	V-ing form
oughtn't I to prebill? oughtn't you to prebill? oughtn't he to prebill? oughtn't we to prebill? oughtn't you to prebill? oughtn't they to prebill?	oughtn't I to be prebilling? oughtn't you to be prebilling? oughtn't he to be prebilling? oughtn't we to be prebilling? oughtn't you to be prebilling? oughtn't they to be prebilling?
Perfect	V-ing perfect
oughtn't I to have prebilled? oughtn't you to have prebilled? oughtn't he to have prebilled? oughtn't we to have prebilled? oughtn't you to have prebilled? oughtn't they to have prebilled?	oughtn't I to have been prebilling? oughtn't you to have been prebilling? oughtn't he to have been prebilling? oughtn't we to have been prebilling? oughtn't you to have been prebilling? oughtn't they to have been prebilling?