English verb conjugation
MUST HIGHTAIL

Regular verb: hightail - hightailed - hightailed

Affirmation

Simple form	V-ing form
I must hightail you must hightail he must hightail we must hightail you must hightail they must hightail	I must be hightailing you must be hightailing he must be hightailing we must be hightailing you must be hightailing they must be hightailing
Perfect	V-ing perfect
I must have hightailed you must have hightailed he must have hightailed we must have hightailed you must have hightailed they must have hightailed	I must have been hightailing you must have been hightailing he must have been hightailing we must have been hightailing you must have been hightailing they must have been hightailing

Negation

Simple form	V-ing form
I mustn't hightail you mustn't hightail he mustn't hightail we mustn't hightail you mustn't hightail they mustn't hightail	I mustn't be hightailing you mustn't be hightailing he mustn't be hightailing we mustn't be hightailing you mustn't be hightailing they mustn't be hightailing
Perfect	V-ing perfect
I mustn't have hightailed you mustn't have hightailed he mustn't have hightailed we mustn't have hightailed you mustn't have hightailed they mustn't have hightailed	I mustn't have been hightailing you mustn't have been hightailing he mustn't have been hightailing we mustn't have been hightailing you mustn't have been hightailing they mustn't have been hightailing

Interrogative form

Simple form	V-ing form
must I hightail? must you hightail? must he hightail? must we hightail? must you hightail? must they hightail?	must I be hightailing? must you be hightailing? must he be hightailing? must we be hightailing? must you be hightailing? must they be hightailing?
Perfect	V-ing perfect
must I have hightailed? must you have hightailed? must he have hightailed? must we have hightailed? must you have hightailed? must they have hightailed?	must I have been hightailing? must you have been hightailing? must he have been hightailing? must we have been hightailing? must you have been hightailing? must they have been hightailing?

Interro-negative form

Simple form	V-ing form
mustn't I hightail? mustn't you hightail? mustn't he hightail? mustn't we hightail? mustn't you hightail? mustn't they hightail?	mustn't I be hightailing? mustn't you be hightailing? mustn't he be hightailing? mustn't we be hightailing? mustn't you be hightailing? mustn't they be hightailing?
Perfect	V-ing perfect
mustn't I have hightailed? mustn't you have hightailed? mustn't he have hightailed? mustn't we have hightailed? mustn't you have hightailed? mustn't they have hightailed?	mustn't I have been hightailing? mustn't you have been hightailing? mustn't he have been hightailing? mustn't we have been hightailing? mustn't you have been hightailing? mustn't they have been hightailing?