English verb conjugation
OUGHT TO TIP

Regular verb: tip - tipped - tipped

Affirmation

Simple form	V-ing form
I ought to tip you ought to tip she ought to tip we ought to tip you ought to tip they ought to tip	I ought to be tipping you ought to be tipping she ought to be tipping we ought to be tipping you ought to be tipping they ought to be tipping
Perfect	V-ing perfect
I ought to have tipped you ought to have tipped she ought to have tipped we ought to have tipped you ought to have tipped they ought to have tipped	I ought to have been tipping you ought to have been tipping she ought to have been tipping we ought to have been tipping you ought to have been tipping they ought to have been tipping

Negation

Simple form	V-ing form
I oughtn't to tip you oughtn't to tip she oughtn't to tip we oughtn't to tip you oughtn't to tip they oughtn't to tip	I oughtn't to be tipping you oughtn't to be tipping she oughtn't to be tipping we oughtn't to be tipping you oughtn't to be tipping they oughtn't to be tipping
Perfect	V-ing perfect
I oughtn't to have tipped you oughtn't to have tipped she oughtn't to have tipped we oughtn't to have tipped you oughtn't to have tipped they oughtn't to have tipped	I oughtn't to have been tipping you oughtn't to have been tipping she oughtn't to have been tipping we oughtn't to have been tipping you oughtn't to have been tipping they oughtn't to have been tipping

Interrogative form

Simple form	V-ing form
ought to I tip? ought to you tip? ought to she tip? ought to we tip? ought to you tip? ought to they tip?	ought to I be tipping? ought to you be tipping? ought to she be tipping? ought to we be tipping? ought to you be tipping? ought to they be tipping?
Perfect	V-ing perfect
ought to I have tipped? ought to you have tipped? ought to she have tipped? ought to we have tipped? ought to you have tipped? ought to they have tipped?	ought to I have been tipping? ought to you have been tipping? ought to she have been tipping? ought to we have been tipping? ought to you have been tipping? ought to they have been tipping?

Interro-negative form

Simple form	V-ing form
oughtn't I to tip? oughtn't you to tip? oughtn't she to tip? oughtn't we to tip? oughtn't you to tip? oughtn't they to tip?	oughtn't I to be tipping? oughtn't you to be tipping? oughtn't she to be tipping? oughtn't we to be tipping? oughtn't you to be tipping? oughtn't they to be tipping?
Perfect	V-ing perfect
oughtn't I to have tipped? oughtn't you to have tipped? oughtn't she to have tipped? oughtn't we to have tipped? oughtn't you to have tipped? oughtn't they to have tipped?	oughtn't I to have been tipping? oughtn't you to have been tipping? oughtn't she to have been tipping? oughtn't we to have been tipping? oughtn't you to have been tipping? oughtn't they to have been tipping?