I must circumnavigate you must circumnavigate he must circumnavigate we must circumnavigate you must circumnavigate they must circumnavigate
V-ing form
I must be circumnavigating you must be circumnavigating he must be circumnavigating we must be circumnavigating you must be circumnavigating they must be circumnavigating
Perfect
I must have circumnavigated you must have circumnavigated he must have circumnavigated we must have circumnavigated you must have circumnavigated they must have circumnavigated
V-ing perfect
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
Negation
Simple form
I must not circumnavigate you must not circumnavigate he must not circumnavigate we must not circumnavigate you must not circumnavigate they must not circumnavigate
V-ing form
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
Perfect
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
V-ing perfect
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
Interrogative form
Simple form
must I circumnavigate? must you circumnavigate? must he circumnavigate? must we circumnavigate? must you circumnavigate? must they circumnavigate?
V-ing form
must I be circumnavigating? must you be circumnavigating? must he be circumnavigating? must we be circumnavigating? must you be circumnavigating? must they be circumnavigating?
Perfect
must I have circumnavigated? must you have circumnavigated? must he have circumnavigated? must we have circumnavigated? must you have circumnavigated? must they have circumnavigated?
V-ing perfect
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?
Interro-negative form
Simple form
must I not circumnavigate? must you not circumnavigate? must he not circumnavigate? must we not circumnavigate? must you not circumnavigate? must they not circumnavigate?
V-ing form
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?
Perfect
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?
V-ing perfect
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?