must disembark
Regular verb: disembark - disembarked- disembarked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must disembark
you must disembark
he must disembark
we must disembark
you must disembark
they must disembark 	I must be disembarking
you must be disembarking
he must be disembarking
we must be disembarking
you must be disembarking
they must be disembarking	I must have disembarked
you must have disembarked
he must have disembarked
we must have disembarked
you must have disembarked
they must have disembarked	I must have been disembarking
you must have been disembarking
he must have been disembarking
we must have been disembarking
you must have been disembarking
they must have been disembarking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not disembark
you must not disembark
he must not disembark
we must not disembark
you must not disembark
they must not disembark 	I must not be disembarking
you must not be disembarking
he must not be disembarking
we must not be disembarking
you must not be disembarking
they must not be disembarking	I must not have disembarked
you must not have disembarked
he must not have disembarked
we must not have disembarked
you must not have disembarked
they must not have disembarked	I must not have been disembarking
you must not have been disembarking
he must not have been disembarking
we must not have been disembarking
you must not have been disembarking
they must not have been disembarking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I disembark?
must you disembark?
must he disembark?
must we disembark?
must you disembark?
must they disembark? 	must I be disembarking?
must you be disembarking?
must he be disembarking?
must we be disembarking?
must you be disembarking?
must they be disembarking? 	must I have disembarked?
must you have disembarked?
must he have disembarked?
must we have disembarked?
must you have disembarked?
must they have disembarked? 	must I have been disembarking?
must you have been disembarking?
must he have been disembarking?
must we have been disembarking?
must you have been disembarking?
must they have been disembarking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not disembark?
must you not disembark?
must he not disembark?
must we not disembark?
must you not disembark?
must they not disembark? 	must I not be disembarking?
must you not be disembarking?
must he not be disembarking?
must we not be disembarking?
must you not be disembarking?
must they not be disembarking? 	must I not have disembarked?
must you not have disembarked?
must he not have disembarked?
must we not have disembarked?
must you not have disembarked?
must they not have disembarked? 	must I not have been disembarking?
must you not have been disembarking?
must he not have been disembarking?
must we not have been disembarking?
must you not have been disembarking?
must they not have been disembarking?