English verb conjugation
MUST TAT

Regular verb: tat - tatted - tatted

Affirmation

Simple form	V-ing form
I must tat you must tat he must tat we must tat you must tat they must tat	I must be tatting you must be tatting he must be tatting we must be tatting you must be tatting they must be tatting
Perfect	V-ing perfect
I must have tatted you must have tatted he must have tatted we must have tatted you must have tatted they must have tatted	I must have been tatting you must have been tatting he must have been tatting we must have been tatting you must have been tatting they must have been tatting

Negation

Simple form	V-ing form
I must not tat you must not tat he must not tat we must not tat you must not tat they must not tat	I must not be tatting you must not be tatting he must not be tatting we must not be tatting you must not be tatting they must not be tatting
Perfect	V-ing perfect
I must not have tatted you must not have tatted he must not have tatted we must not have tatted you must not have tatted they must not have tatted	I must not have been tatting you must not have been tatting he must not have been tatting we must not have been tatting you must not have been tatting they must not have been tatting

Interrogative form

Simple form	V-ing form
must I tat? must you tat? must he tat? must we tat? must you tat? must they tat?	must I be tatting? must you be tatting? must he be tatting? must we be tatting? must you be tatting? must they be tatting?
Perfect	V-ing perfect
must I have tatted? must you have tatted? must he have tatted? must we have tatted? must you have tatted? must they have tatted?	must I have been tatting? must you have been tatting? must he have been tatting? must we have been tatting? must you have been tatting? must they have been tatting?

Interro-negative form

Simple form	V-ing form
must I not tat? must you not tat? must he not tat? must we not tat? must you not tat? must they not tat?	must I not be tatting? must you not be tatting? must he not be tatting? must we not be tatting? must you not be tatting? must they not be tatting?
Perfect	V-ing perfect
must I not have tatted? must you not have tatted? must he not have tatted? must we not have tatted? must you not have tatted? must they not have tatted?	must I not have been tatting? must you not have been tatting? must he not have been tatting? must we not have been tatting? must you not have been tatting? must they not have been tatting?