English verb conjugation
MUST SCAT

Regular verb: scat - scatted - scatted

Affirmation

Simple form	V-ing form
I must scat you must scat he must scat we must scat you must scat they must scat	I must be scatting you must be scatting he must be scatting we must be scatting you must be scatting they must be scatting
Perfect	V-ing perfect
I must have scatted you must have scatted he must have scatted we must have scatted you must have scatted they must have scatted	I must have been scatting you must have been scatting he must have been scatting we must have been scatting you must have been scatting they must have been scatting

Negation

Simple form	V-ing form
I mustn't scat you mustn't scat he mustn't scat we mustn't scat you mustn't scat they mustn't scat	I mustn't be scatting you mustn't be scatting he mustn't be scatting we mustn't be scatting you mustn't be scatting they mustn't be scatting
Perfect	V-ing perfect
I mustn't have scatted you mustn't have scatted he mustn't have scatted we mustn't have scatted you mustn't have scatted they mustn't have scatted	I mustn't have been scatting you mustn't have been scatting he mustn't have been scatting we mustn't have been scatting you mustn't have been scatting they mustn't have been scatting

Interrogative form

Simple form	V-ing form
must I scat? must you scat? must he scat? must we scat? must you scat? must they scat?	must I be scatting? must you be scatting? must he be scatting? must we be scatting? must you be scatting? must they be scatting?
Perfect	V-ing perfect
must I have scatted? must you have scatted? must he have scatted? must we have scatted? must you have scatted? must they have scatted?	must I have been scatting? must you have been scatting? must he have been scatting? must we have been scatting? must you have been scatting? must they have been scatting?

Interro-negative form

Simple form	V-ing form
mustn't I scat? mustn't you scat? mustn't he scat? mustn't we scat? mustn't you scat? mustn't they scat?	mustn't I be scatting? mustn't you be scatting? mustn't he be scatting? mustn't we be scatting? mustn't you be scatting? mustn't they be scatting?
Perfect	V-ing perfect
mustn't I have scatted? mustn't you have scatted? mustn't he have scatted? mustn't we have scatted? mustn't you have scatted? mustn't they have scatted?	mustn't I have been scatting? mustn't you have been scatting? mustn't he have been scatting? mustn't we have been scatting? mustn't you have been scatting? mustn't they have been scatting?