English verb conjugation
MUST SKIMP

Regular verb: skimp - skimped - skimped

Affirmation

Simple form	V-ing form
I must skimp you must skimp he must skimp we must skimp you must skimp they must skimp	I must be skimping you must be skimping he must be skimping we must be skimping you must be skimping they must be skimping
Perfect	V-ing perfect
I must have skimped you must have skimped he must have skimped we must have skimped you must have skimped they must have skimped	I must have been skimping you must have been skimping he must have been skimping we must have been skimping you must have been skimping they must have been skimping

Negation

Simple form	V-ing form
I mustn't skimp you mustn't skimp he mustn't skimp we mustn't skimp you mustn't skimp they mustn't skimp	I mustn't be skimping you mustn't be skimping he mustn't be skimping we mustn't be skimping you mustn't be skimping they mustn't be skimping
Perfect	V-ing perfect
I mustn't have skimped you mustn't have skimped he mustn't have skimped we mustn't have skimped you mustn't have skimped they mustn't have skimped	I mustn't have been skimping you mustn't have been skimping he mustn't have been skimping we mustn't have been skimping you mustn't have been skimping they mustn't have been skimping

Interrogative form

Simple form	V-ing form
must I skimp? must you skimp? must he skimp? must we skimp? must you skimp? must they skimp?	must I be skimping? must you be skimping? must he be skimping? must we be skimping? must you be skimping? must they be skimping?
Perfect	V-ing perfect
must I have skimped? must you have skimped? must he have skimped? must we have skimped? must you have skimped? must they have skimped?	must I have been skimping? must you have been skimping? must he have been skimping? must we have been skimping? must you have been skimping? must they have been skimping?

Interro-negative form

Simple form	V-ing form
mustn't I skimp? mustn't you skimp? mustn't he skimp? mustn't we skimp? mustn't you skimp? mustn't they skimp?	mustn't I be skimping? mustn't you be skimping? mustn't he be skimping? mustn't we be skimping? mustn't you be skimping? mustn't they be skimping?
Perfect	V-ing perfect
mustn't I have skimped? mustn't you have skimped? mustn't he have skimped? mustn't we have skimped? mustn't you have skimped? mustn't they have skimped?	mustn't I have been skimping? mustn't you have been skimping? mustn't he have been skimping? mustn't we have been skimping? mustn't you have been skimping? mustn't they have been skimping?