must circumambulate
Regular verb: circumambulate - circumambulated- circumambulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must circumambulate
you must circumambulate
she must circumambulate
we must circumambulate
you must circumambulate
they must circumambulate 	I must be circumambulating
you must be circumambulating
she must be circumambulating
we must be circumambulating
you must be circumambulating
they must be circumambulating	I must have circumambulated
you must have circumambulated
she must have circumambulated
we must have circumambulated
you must have circumambulated
they must have circumambulated	I must have been circumambulating
you must have been circumambulating
she must have been circumambulating
we must have been circumambulating
you must have been circumambulating
they must have been circumambulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't circumambulate
you mustn't circumambulate
she mustn't circumambulate
we mustn't circumambulate
you mustn't circumambulate
they mustn't circumambulate 	I mustn't be circumambulating
you mustn't be circumambulating
she mustn't be circumambulating
we mustn't be circumambulating
you mustn't be circumambulating
they mustn't be circumambulating	I mustn't have circumambulated
you mustn't have circumambulated
she mustn't have circumambulated
we mustn't have circumambulated
you mustn't have circumambulated
they mustn't have circumambulated	I mustn't have been circumambulating
you mustn't have been circumambulating
she mustn't have been circumambulating
we mustn't have been circumambulating
you mustn't have been circumambulating
they mustn't have been circumambulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I circumambulate?
must you circumambulate?
must she circumambulate?
must we circumambulate?
must you circumambulate?
must they circumambulate? 	must I be circumambulating?
must you be circumambulating?
must she be circumambulating?
must we be circumambulating?
must you be circumambulating?
must they be circumambulating? 	must I have circumambulated?
must you have circumambulated?
must she have circumambulated?
must we have circumambulated?
must you have circumambulated?
must they have circumambulated? 	must I have been circumambulating?
must you have been circumambulating?
must she have been circumambulating?
must we have been circumambulating?
must you have been circumambulating?
must they have been circumambulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I circumambulate?
mustn't you circumambulate?
mustn't she circumambulate?
mustn't we circumambulate?
mustn't you circumambulate?
mustn't they circumambulate? 	mustn't I be circumambulating?
mustn't you be circumambulating?
mustn't she be circumambulating?
mustn't we be circumambulating?
mustn't you be circumambulating?
mustn't they be circumambulating? 	mustn't I have circumambulated?
mustn't you have circumambulated?
mustn't she have circumambulated?
mustn't we have circumambulated?
mustn't you have circumambulated?
mustn't they have circumambulated? 	mustn't I have been circumambulating?
mustn't you have been circumambulating?
mustn't she have been circumambulating?
mustn't we have been circumambulating?
mustn't you have been circumambulating?
mustn't they have been circumambulating?