must hightail
Regular verb: hightail - hightailed- hightailed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I must not hightail
you must not hightail
he must not hightail
we must not hightail
you must not hightail
they must not hightail 	I must not be hightailing
you must not be hightailing
he must not be hightailing
we must not be hightailing
you must not be hightailing
they must not be hightailing	I must not have hightailed
you must not have hightailed
he must not have hightailed
we must not have hightailed
you must not have hightailed
they must not have hightailed	I must not have been hightailing
you must not have been hightailing
he must not have been hightailing
we must not have been hightailing
you must not have been hightailing
they must not have been hightailing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
must I not hightail?
must you not hightail?
must he not hightail?
must we not hightail?
must you not hightail?
must they not hightail? 	must I not be hightailing?
must you not be hightailing?
must he not be hightailing?
must we not be hightailing?
must you not be hightailing?
must they not be hightailing? 	must I not have hightailed?
must you not have hightailed?
must he not have hightailed?
must we not have hightailed?
must you not have hightailed?
must they not have hightailed? 	must I not have been hightailing?
must you not have been hightailing?
must he not have been hightailing?
must we not have been hightailing?
must you not have been hightailing?
must they not have been hightailing?