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 mustn't hallo you mustn't hallo he mustn't hallo we mustn't hallo you mustn't hallo they mustn't hallo	I mustn't be halloing you mustn't be halloing he mustn't be halloing we mustn't be halloing you mustn't be halloing they mustn't be halloing
Perfect	V-ing perfect
I mustn't have halloed you mustn't have halloed he mustn't have halloed we mustn't have halloed you mustn't have halloed they mustn't have halloed	I mustn't have been halloing you mustn't have been halloing he mustn't have been halloing we mustn't have been halloing you mustn't have been halloing they mustn't 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
mustn't I hallo? mustn't you hallo? mustn't he hallo? mustn't we hallo? mustn't you hallo? mustn't they hallo?	mustn't I be halloing? mustn't you be halloing? mustn't he be halloing? mustn't we be halloing? mustn't you be halloing? mustn't they be halloing?
Perfect	V-ing perfect
mustn't I have halloed? mustn't you have halloed? mustn't he have halloed? mustn't we have halloed? mustn't you have halloed? mustn't they have halloed?	mustn't I have been halloing? mustn't you have been halloing? mustn't he have been halloing? mustn't we have been halloing? mustn't you have been halloing? mustn't they have been halloing?