English verb conjugation
MUST HALLO

Regular verb: hallo - halloed - halloed

Affirmation

Simple form	V-ing form
I must hallo you must hallo he must hallo we must hallo you must hallo they must hallo	I must be halloing you must be halloing he must be halloing we must be halloing you must be halloing they must be halloing
Perfect	V-ing perfect
I must have halloed you must have halloed he must have halloed we must have halloed you must have halloed they must have halloed	I must have been halloing you must have been halloing he must have been halloing we must have been halloing you must have been halloing they must have been halloing

Negation

Simple form	V-ing form
I must not hallo you must not hallo he must not hallo we must not hallo you must not hallo they must not hallo	I must not be halloing you must not be halloing he must not be halloing we must not be halloing you must not be halloing they must not be halloing
Perfect	V-ing perfect
I must not have halloed you must not have halloed he must not have halloed we must not have halloed you must not have halloed they must not have halloed	I must not have been halloing you must not have been halloing he must not have been halloing we must not have been halloing you must not have been halloing they must not have been halloing

Interrogative form

Simple form	V-ing form
must I hallo? must you hallo? must he hallo? must we hallo? must you hallo? must they hallo?	must I be halloing? must you be halloing? must he be halloing? must we be halloing? must you be halloing? must they be halloing?
Perfect	V-ing perfect
must I have halloed? must you have halloed? must he have halloed? must we have halloed? must you have halloed? must they have halloed?	must I have been halloing? must you have been halloing? must he have been halloing? must we have been halloing? must you have been halloing? must they have been halloing?

Interro-negative form

Simple form	V-ing form
must I not hallo? must you not hallo? must he not hallo? must we not hallo? must you not hallo? must they not hallo?	must I not be halloing? must you not be halloing? must he not be halloing? must we not be halloing? must you not be halloing? must they not be halloing?
Perfect	V-ing perfect
must I not have halloed? must you not have halloed? must he not have halloed? must we not have halloed? must you not have halloed? must they not have halloed?	must I not have been halloing? must you not have been halloing? must he not have been halloing? must we not have been halloing? must you not have been halloing? must they not have been halloing?