English verb conjugation
MUST POLKA

Regular verb: polka - polkaed - polkaed

Affirmation

Simple form	V-ing form
I must polka you must polka he must polka we must polka you must polka they must polka	I must be polkaing you must be polkaing he must be polkaing we must be polkaing you must be polkaing they must be polkaing
Perfect	V-ing perfect
I must have polkaed you must have polkaed he must have polkaed we must have polkaed you must have polkaed they must have polkaed	I must have been polkaing you must have been polkaing he must have been polkaing we must have been polkaing you must have been polkaing they must have been polkaing

Negation

Simple form	V-ing form
I must not polka you must not polka he must not polka we must not polka you must not polka they must not polka	I must not be polkaing you must not be polkaing he must not be polkaing we must not be polkaing you must not be polkaing they must not be polkaing
Perfect	V-ing perfect
I must not have polkaed you must not have polkaed he must not have polkaed we must not have polkaed you must not have polkaed they must not have polkaed	I must not have been polkaing you must not have been polkaing he must not have been polkaing we must not have been polkaing you must not have been polkaing they must not have been polkaing

Interrogative form

Simple form	V-ing form
must I polka? must you polka? must he polka? must we polka? must you polka? must they polka?	must I be polkaing? must you be polkaing? must he be polkaing? must we be polkaing? must you be polkaing? must they be polkaing?
Perfect	V-ing perfect
must I have polkaed? must you have polkaed? must he have polkaed? must we have polkaed? must you have polkaed? must they have polkaed?	must I have been polkaing? must you have been polkaing? must he have been polkaing? must we have been polkaing? must you have been polkaing? must they have been polkaing?

Interro-negative form

Simple form	V-ing form
must I not polka? must you not polka? must he not polka? must we not polka? must you not polka? must they not polka?	must I not be polkaing? must you not be polkaing? must he not be polkaing? must we not be polkaing? must you not be polkaing? must they not be polkaing?
Perfect	V-ing perfect
must I not have polkaed? must you not have polkaed? must he not have polkaed? must we not have polkaed? must you not have polkaed? must they not have polkaed?	must I not have been polkaing? must you not have been polkaing? must he not have been polkaing? must we not have been polkaing? must you not have been polkaing? must they not have been polkaing?