English verb conjugation
MUST OBLIGE

Regular verb: oblige - obliged - obliged

Affirmation

Simple form	V-ing form
I must oblige you must oblige he must oblige we must oblige you must oblige they must oblige	I must be obliging you must be obliging he must be obliging we must be obliging you must be obliging they must be obliging
Perfect	V-ing perfect
I must have obliged you must have obliged he must have obliged we must have obliged you must have obliged they must have obliged	I must have been obliging you must have been obliging he must have been obliging we must have been obliging you must have been obliging they must have been obliging

Negation

Simple form	V-ing form
I mustn't oblige you mustn't oblige he mustn't oblige we mustn't oblige you mustn't oblige they mustn't oblige	I mustn't be obliging you mustn't be obliging he mustn't be obliging we mustn't be obliging you mustn't be obliging they mustn't be obliging
Perfect	V-ing perfect
I mustn't have obliged you mustn't have obliged he mustn't have obliged we mustn't have obliged you mustn't have obliged they mustn't have obliged	I mustn't have been obliging you mustn't have been obliging he mustn't have been obliging we mustn't have been obliging you mustn't have been obliging they mustn't have been obliging

Interrogative form

Simple form	V-ing form
must I oblige? must you oblige? must he oblige? must we oblige? must you oblige? must they oblige?	must I be obliging? must you be obliging? must he be obliging? must we be obliging? must you be obliging? must they be obliging?
Perfect	V-ing perfect
must I have obliged? must you have obliged? must he have obliged? must we have obliged? must you have obliged? must they have obliged?	must I have been obliging? must you have been obliging? must he have been obliging? must we have been obliging? must you have been obliging? must they have been obliging?

Interro-negative form

Simple form	V-ing form
mustn't I oblige? mustn't you oblige? mustn't he oblige? mustn't we oblige? mustn't you oblige? mustn't they oblige?	mustn't I be obliging? mustn't you be obliging? mustn't he be obliging? mustn't we be obliging? mustn't you be obliging? mustn't they be obliging?
Perfect	V-ing perfect
mustn't I have obliged? mustn't you have obliged? mustn't he have obliged? mustn't we have obliged? mustn't you have obliged? mustn't they have obliged?	mustn't I have been obliging? mustn't you have been obliging? mustn't he have been obliging? mustn't we have been obliging? mustn't you have been obliging? mustn't they have been obliging?