English verb conjugation
OUGHT TO PREINVITE

Regular verb: preinvite - preinvited - preinvited

Affirmation

Simple form	V-ing form
I ought to preinvite you ought to preinvite he ought to preinvite we ought to preinvite you ought to preinvite they ought to preinvite	I ought to be preinviting you ought to be preinviting he ought to be preinviting we ought to be preinviting you ought to be preinviting they ought to be preinviting
Perfect	V-ing perfect
I ought to have preinvited you ought to have preinvited he ought to have preinvited we ought to have preinvited you ought to have preinvited they ought to have preinvited	I ought to have been preinviting you ought to have been preinviting he ought to have been preinviting we ought to have been preinviting you ought to have been preinviting they ought to have been preinviting

Negation

Simple form	V-ing form
I oughtn't to preinvite you oughtn't to preinvite he oughtn't to preinvite we oughtn't to preinvite you oughtn't to preinvite they oughtn't to preinvite	I oughtn't to be preinviting you oughtn't to be preinviting he oughtn't to be preinviting we oughtn't to be preinviting you oughtn't to be preinviting they oughtn't to be preinviting
Perfect	V-ing perfect
I oughtn't to have preinvited you oughtn't to have preinvited he oughtn't to have preinvited we oughtn't to have preinvited you oughtn't to have preinvited they oughtn't to have preinvited	I oughtn't to have been preinviting you oughtn't to have been preinviting he oughtn't to have been preinviting we oughtn't to have been preinviting you oughtn't to have been preinviting they oughtn't to have been preinviting

Interrogative form

Simple form	V-ing form
ought to I preinvite? ought to you preinvite? ought to he preinvite? ought to we preinvite? ought to you preinvite? ought to they preinvite?	ought to I be preinviting? ought to you be preinviting? ought to he be preinviting? ought to we be preinviting? ought to you be preinviting? ought to they be preinviting?
Perfect	V-ing perfect
ought to I have preinvited? ought to you have preinvited? ought to he have preinvited? ought to we have preinvited? ought to you have preinvited? ought to they have preinvited?	ought to I have been preinviting? ought to you have been preinviting? ought to he have been preinviting? ought to we have been preinviting? ought to you have been preinviting? ought to they have been preinviting?

Interro-negative form

Simple form	V-ing form
oughtn't I to preinvite? oughtn't you to preinvite? oughtn't he to preinvite? oughtn't we to preinvite? oughtn't you to preinvite? oughtn't they to preinvite?	oughtn't I to be preinviting? oughtn't you to be preinviting? oughtn't he to be preinviting? oughtn't we to be preinviting? oughtn't you to be preinviting? oughtn't they to be preinviting?
Perfect	V-ing perfect
oughtn't I to have preinvited? oughtn't you to have preinvited? oughtn't he to have preinvited? oughtn't we to have preinvited? oughtn't you to have preinvited? oughtn't they to have preinvited?	oughtn't I to have been preinviting? oughtn't you to have been preinviting? oughtn't he to have been preinviting? oughtn't we to have been preinviting? oughtn't you to have been preinviting? oughtn't they to have been preinviting?