must ambulate
Regular verb: ambulate - ambulated- ambulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must ambulate
you must ambulate
she must ambulate
we must ambulate
you must ambulate
they must ambulate 	I must be ambulating
you must be ambulating
she must be ambulating
we must be ambulating
you must be ambulating
they must be ambulating	I must have ambulated
you must have ambulated
she must have ambulated
we must have ambulated
you must have ambulated
they must have ambulated	I must have been ambulating
you must have been ambulating
she must have been ambulating
we must have been ambulating
you must have been ambulating
they must have been ambulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't ambulate
you mustn't ambulate
she mustn't ambulate
we mustn't ambulate
you mustn't ambulate
they mustn't ambulate 	I mustn't be ambulating
you mustn't be ambulating
she mustn't be ambulating
we mustn't be ambulating
you mustn't be ambulating
they mustn't be ambulating	I mustn't have ambulated
you mustn't have ambulated
she mustn't have ambulated
we mustn't have ambulated
you mustn't have ambulated
they mustn't have ambulated	I mustn't have been ambulating
you mustn't have been ambulating
she mustn't have been ambulating
we mustn't have been ambulating
you mustn't have been ambulating
they mustn't have been ambulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I ambulate?
must you ambulate?
must she ambulate?
must we ambulate?
must you ambulate?
must they ambulate? 	must I be ambulating?
must you be ambulating?
must she be ambulating?
must we be ambulating?
must you be ambulating?
must they be ambulating? 	must I have ambulated?
must you have ambulated?
must she have ambulated?
must we have ambulated?
must you have ambulated?
must they have ambulated? 	must I have been ambulating?
must you have been ambulating?
must she have been ambulating?
must we have been ambulating?
must you have been ambulating?
must they have been ambulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I ambulate?
mustn't you ambulate?
mustn't she ambulate?
mustn't we ambulate?
mustn't you ambulate?
mustn't they ambulate? 	mustn't I be ambulating?
mustn't you be ambulating?
mustn't she be ambulating?
mustn't we be ambulating?
mustn't you be ambulating?
mustn't they be ambulating? 	mustn't I have ambulated?
mustn't you have ambulated?
mustn't she have ambulated?
mustn't we have ambulated?
mustn't you have ambulated?
mustn't they have ambulated? 	mustn't I have been ambulating?
mustn't you have been ambulating?
mustn't she have been ambulating?
mustn't we have been ambulating?
mustn't you have been ambulating?
mustn't they have been ambulating?