English verb conjugation
MUST SKUNK

Regular verb: skunk - skunked - skunked

Affirmation

Simple form	V-ing form
I must skunk you must skunk he must skunk we must skunk you must skunk they must skunk	I must be skunking you must be skunking he must be skunking we must be skunking you must be skunking they must be skunking
Perfect	V-ing perfect
I must have skunked you must have skunked he must have skunked we must have skunked you must have skunked they must have skunked	I must have been skunking you must have been skunking he must have been skunking we must have been skunking you must have been skunking they must have been skunking

Negation

Simple form	V-ing form
I mustn't skunk you mustn't skunk he mustn't skunk we mustn't skunk you mustn't skunk they mustn't skunk	I mustn't be skunking you mustn't be skunking he mustn't be skunking we mustn't be skunking you mustn't be skunking they mustn't be skunking
Perfect	V-ing perfect
I mustn't have skunked you mustn't have skunked he mustn't have skunked we mustn't have skunked you mustn't have skunked they mustn't have skunked	I mustn't have been skunking you mustn't have been skunking he mustn't have been skunking we mustn't have been skunking you mustn't have been skunking they mustn't have been skunking

Interrogative form

Simple form	V-ing form
must I skunk? must you skunk? must he skunk? must we skunk? must you skunk? must they skunk?	must I be skunking? must you be skunking? must he be skunking? must we be skunking? must you be skunking? must they be skunking?
Perfect	V-ing perfect
must I have skunked? must you have skunked? must he have skunked? must we have skunked? must you have skunked? must they have skunked?	must I have been skunking? must you have been skunking? must he have been skunking? must we have been skunking? must you have been skunking? must they have been skunking?

Interro-negative form

Simple form	V-ing form
mustn't I skunk? mustn't you skunk? mustn't he skunk? mustn't we skunk? mustn't you skunk? mustn't they skunk?	mustn't I be skunking? mustn't you be skunking? mustn't he be skunking? mustn't we be skunking? mustn't you be skunking? mustn't they be skunking?
Perfect	V-ing perfect
mustn't I have skunked? mustn't you have skunked? mustn't he have skunked? mustn't we have skunked? mustn't you have skunked? mustn't they have skunked?	mustn't I have been skunking? mustn't you have been skunking? mustn't he have been skunking? mustn't we have been skunking? mustn't you have been skunking? mustn't they have been skunking?