must circumnavigate
Verbo regular: circumnavigate - circumnavigated- circumnavigated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must circumnavigate
you must circumnavigate
he must circumnavigate
we must circumnavigate
you must circumnavigate
they must circumnavigate 	I must be circumnavigating
you must be circumnavigating
he must be circumnavigating
we must be circumnavigating
you must be circumnavigating
they must be circumnavigating	I must have circumnavigated
you must have circumnavigated
he must have circumnavigated
we must have circumnavigated
you must have circumnavigated
they must have circumnavigated	I must have been circumnavigating
you must have been circumnavigating
he must have been circumnavigating
we must have been circumnavigating
you must have been circumnavigating
they must have been circumnavigating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not circumnavigate
you must not circumnavigate
he must not circumnavigate
we must not circumnavigate
you must not circumnavigate
they must not circumnavigate 	I must not be circumnavigating
you must not be circumnavigating
he must not be circumnavigating
we must not be circumnavigating
you must not be circumnavigating
they must not be circumnavigating	I must not have circumnavigated
you must not have circumnavigated
he must not have circumnavigated
we must not have circumnavigated
you must not have circumnavigated
they must not have circumnavigated	I must not have been circumnavigating
you must not have been circumnavigating
he must not have been circumnavigating
we must not have been circumnavigating
you must not have been circumnavigating
they must not have been circumnavigating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I circumnavigate?
must you circumnavigate?
must he circumnavigate?
must we circumnavigate?
must you circumnavigate?
must they circumnavigate? 	must I be circumnavigating?
must you be circumnavigating?
must he be circumnavigating?
must we be circumnavigating?
must you be circumnavigating?
must they be circumnavigating? 	must I have circumnavigated?
must you have circumnavigated?
must he have circumnavigated?
must we have circumnavigated?
must you have circumnavigated?
must they have circumnavigated? 	must I have been circumnavigating?
must you have been circumnavigating?
must he have been circumnavigating?
must we have been circumnavigating?
must you have been circumnavigating?
must they have been circumnavigating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not circumnavigate?
must you not circumnavigate?
must he not circumnavigate?
must we not circumnavigate?
must you not circumnavigate?
must they not circumnavigate? 	must I not be circumnavigating?
must you not be circumnavigating?
must he not be circumnavigating?
must we not be circumnavigating?
must you not be circumnavigating?
must they not be circumnavigating? 	must I not have circumnavigated?
must you not have circumnavigated?
must he not have circumnavigated?
must we not have circumnavigated?
must you not have circumnavigated?
must they not have circumnavigated? 	must I not have been circumnavigating?
must you not have been circumnavigating?
must he not have been circumnavigating?
must we not have been circumnavigating?
must you not have been circumnavigating?
must they not have been circumnavigating?