must circumvallate
Regular verb: circumvallate - circumvallated- circumvallated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must circumvallate
you must circumvallate
he must circumvallate
we must circumvallate
you must circumvallate
they must circumvallate 	I must be circumvallating
you must be circumvallating
he must be circumvallating
we must be circumvallating
you must be circumvallating
they must be circumvallating	I must have circumvallated
you must have circumvallated
he must have circumvallated
we must have circumvallated
you must have circumvallated
they must have circumvallated	I must have been circumvallating
you must have been circumvallating
he must have been circumvallating
we must have been circumvallating
you must have been circumvallating
they must have been circumvallating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not circumvallate
you must not circumvallate
he must not circumvallate
we must not circumvallate
you must not circumvallate
they must not circumvallate 	I must not be circumvallating
you must not be circumvallating
he must not be circumvallating
we must not be circumvallating
you must not be circumvallating
they must not be circumvallating	I must not have circumvallated
you must not have circumvallated
he must not have circumvallated
we must not have circumvallated
you must not have circumvallated
they must not have circumvallated	I must not have been circumvallating
you must not have been circumvallating
he must not have been circumvallating
we must not have been circumvallating
you must not have been circumvallating
they must not have been circumvallating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I circumvallate?
must you circumvallate?
must he circumvallate?
must we circumvallate?
must you circumvallate?
must they circumvallate? 	must I be circumvallating?
must you be circumvallating?
must he be circumvallating?
must we be circumvallating?
must you be circumvallating?
must they be circumvallating? 	must I have circumvallated?
must you have circumvallated?
must he have circumvallated?
must we have circumvallated?
must you have circumvallated?
must they have circumvallated? 	must I have been circumvallating?
must you have been circumvallating?
must he have been circumvallating?
must we have been circumvallating?
must you have been circumvallating?
must they have been circumvallating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not circumvallate?
must you not circumvallate?
must he not circumvallate?
must we not circumvallate?
must you not circumvallate?
must they not circumvallate? 	must I not be circumvallating?
must you not be circumvallating?
must he not be circumvallating?
must we not be circumvallating?
must you not be circumvallating?
must they not be circumvallating? 	must I not have circumvallated?
must you not have circumvallated?
must he not have circumvallated?
must we not have circumvallated?
must you not have circumvallated?
must they not have circumvallated? 	must I not have been circumvallating?
must you not have been circumvallating?
must he not have been circumvallating?
must we not have been circumvallating?
must you not have been circumvallating?
must they not have been circumvallating?