English verb conjugation
MUST SKIMP

Regular verb: skimp - skimped - skimped

Affirmation

Simple form	V-ing form
I must skimp you must skimp she must skimp we must skimp you must skimp they must skimp	I must be skimping you must be skimping she 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 she 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 she 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 she 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 she 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 she 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 she 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 she skimp? must we skimp? must you skimp? must they skimp?	must I be skimping? must you be skimping? must she 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 she 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 she 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 she 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 she 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 she 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 she have been skimping? mustn't we have been skimping? mustn't you have been skimping? mustn't they have been skimping?