must starboard
Regular verb: starboard - starboarded- starboarded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must starboard
you must starboard
she must starboard
we must starboard
you must starboard
they must starboard 	I must be starboarding
you must be starboarding
she must be starboarding
we must be starboarding
you must be starboarding
they must be starboarding	I must have starboarded
you must have starboarded
she must have starboarded
we must have starboarded
you must have starboarded
they must have starboarded	I must have been starboarding
you must have been starboarding
she must have been starboarding
we must have been starboarding
you must have been starboarding
they must have been starboarding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't starboard
you mustn't starboard
she mustn't starboard
we mustn't starboard
you mustn't starboard
they mustn't starboard 	I mustn't be starboarding
you mustn't be starboarding
she mustn't be starboarding
we mustn't be starboarding
you mustn't be starboarding
they mustn't be starboarding	I mustn't have starboarded
you mustn't have starboarded
she mustn't have starboarded
we mustn't have starboarded
you mustn't have starboarded
they mustn't have starboarded	I mustn't have been starboarding
you mustn't have been starboarding
she mustn't have been starboarding
we mustn't have been starboarding
you mustn't have been starboarding
they mustn't have been starboarding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I starboard?
must you starboard?
must she starboard?
must we starboard?
must you starboard?
must they starboard? 	must I be starboarding?
must you be starboarding?
must she be starboarding?
must we be starboarding?
must you be starboarding?
must they be starboarding? 	must I have starboarded?
must you have starboarded?
must she have starboarded?
must we have starboarded?
must you have starboarded?
must they have starboarded? 	must I have been starboarding?
must you have been starboarding?
must she have been starboarding?
must we have been starboarding?
must you have been starboarding?
must they have been starboarding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I starboard?
mustn't you starboard?
mustn't she starboard?
mustn't we starboard?
mustn't you starboard?
mustn't they starboard? 	mustn't I be starboarding?
mustn't you be starboarding?
mustn't she be starboarding?
mustn't we be starboarding?
mustn't you be starboarding?
mustn't they be starboarding? 	mustn't I have starboarded?
mustn't you have starboarded?
mustn't she have starboarded?
mustn't we have starboarded?
mustn't you have starboarded?
mustn't they have starboarded? 	mustn't I have been starboarding?
mustn't you have been starboarding?
mustn't she have been starboarding?
mustn't we have been starboarding?
mustn't you have been starboarding?
mustn't they have been starboarding?