English verb conjugation
OUGHT TO ZIP

Regular verb: zip - zipped - zipped

Affirmation

Simple form	V-ing form
I ought to zip you ought to zip he ought to zip we ought to zip you ought to zip they ought to zip	I ought to be zipping you ought to be zipping he ought to be zipping we ought to be zipping you ought to be zipping they ought to be zipping
Perfect	V-ing perfect
I ought to have zipped you ought to have zipped he ought to have zipped we ought to have zipped you ought to have zipped they ought to have zipped	I ought to have been zipping you ought to have been zipping he ought to have been zipping we ought to have been zipping you ought to have been zipping they ought to have been zipping

Negation

Simple form	V-ing form
I oughtn't to zip you oughtn't to zip he oughtn't to zip we oughtn't to zip you oughtn't to zip they oughtn't to zip	I oughtn't to be zipping you oughtn't to be zipping he oughtn't to be zipping we oughtn't to be zipping you oughtn't to be zipping they oughtn't to be zipping
Perfect	V-ing perfect
I oughtn't to have zipped you oughtn't to have zipped he oughtn't to have zipped we oughtn't to have zipped you oughtn't to have zipped they oughtn't to have zipped	I oughtn't to have been zipping you oughtn't to have been zipping he oughtn't to have been zipping we oughtn't to have been zipping you oughtn't to have been zipping they oughtn't to have been zipping

Interrogative form

Simple form	V-ing form
ought to I zip? ought to you zip? ought to he zip? ought to we zip? ought to you zip? ought to they zip?	ought to I be zipping? ought to you be zipping? ought to he be zipping? ought to we be zipping? ought to you be zipping? ought to they be zipping?
Perfect	V-ing perfect
ought to I have zipped? ought to you have zipped? ought to he have zipped? ought to we have zipped? ought to you have zipped? ought to they have zipped?	ought to I have been zipping? ought to you have been zipping? ought to he have been zipping? ought to we have been zipping? ought to you have been zipping? ought to they have been zipping?

Interro-negative form

Simple form	V-ing form
oughtn't I to zip? oughtn't you to zip? oughtn't he to zip? oughtn't we to zip? oughtn't you to zip? oughtn't they to zip?	oughtn't I to be zipping? oughtn't you to be zipping? oughtn't he to be zipping? oughtn't we to be zipping? oughtn't you to be zipping? oughtn't they to be zipping?
Perfect	V-ing perfect
oughtn't I to have zipped? oughtn't you to have zipped? oughtn't he to have zipped? oughtn't we to have zipped? oughtn't you to have zipped? oughtn't they to have zipped?	oughtn't I to have been zipping? oughtn't you to have been zipping? oughtn't he to have been zipping? oughtn't we to have been zipping? oughtn't you to have been zipping? oughtn't they to have been zipping?