English verb conjugation
MUST HAIL

Regular verb: hail - hailed - hailed

Affirmation

Simple form	V-ing form
I must hail you must hail he must hail we must hail you must hail they must hail	I must be hailing you must be hailing he must be hailing we must be hailing you must be hailing they must be hailing
Perfect	V-ing perfect
I must have hailed you must have hailed he must have hailed we must have hailed you must have hailed they must have hailed	I must have been hailing you must have been hailing he must have been hailing we must have been hailing you must have been hailing they must have been hailing

Negation

Simple form	V-ing form
I mustn't hail you mustn't hail he mustn't hail we mustn't hail you mustn't hail they mustn't hail	I mustn't be hailing you mustn't be hailing he mustn't be hailing we mustn't be hailing you mustn't be hailing they mustn't be hailing
Perfect	V-ing perfect
I mustn't have hailed you mustn't have hailed he mustn't have hailed we mustn't have hailed you mustn't have hailed they mustn't have hailed	I mustn't have been hailing you mustn't have been hailing he mustn't have been hailing we mustn't have been hailing you mustn't have been hailing they mustn't have been hailing

Interrogative form

Simple form	V-ing form
must I hail? must you hail? must he hail? must we hail? must you hail? must they hail?	must I be hailing? must you be hailing? must he be hailing? must we be hailing? must you be hailing? must they be hailing?
Perfect	V-ing perfect
must I have hailed? must you have hailed? must he have hailed? must we have hailed? must you have hailed? must they have hailed?	must I have been hailing? must you have been hailing? must he have been hailing? must we have been hailing? must you have been hailing? must they have been hailing?

Interro-negative form

Simple form	V-ing form
mustn't I hail? mustn't you hail? mustn't he hail? mustn't we hail? mustn't you hail? mustn't they hail?	mustn't I be hailing? mustn't you be hailing? mustn't he be hailing? mustn't we be hailing? mustn't you be hailing? mustn't they be hailing?
Perfect	V-ing perfect
mustn't I have hailed? mustn't you have hailed? mustn't he have hailed? mustn't we have hailed? mustn't you have hailed? mustn't they have hailed?	mustn't I have been hailing? mustn't you have been hailing? mustn't he have been hailing? mustn't we have been hailing? mustn't you have been hailing? mustn't they have been hailing?