must billet
Regular verb: billet - billeted- billeted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must billet
you must billet
he must billet
we must billet
you must billet
they must billet 	I must be billeting
you must be billeting
he must be billeting
we must be billeting
you must be billeting
they must be billeting	I must have billeted
you must have billeted
he must have billeted
we must have billeted
you must have billeted
they must have billeted	I must have been billeting
you must have been billeting
he must have been billeting
we must have been billeting
you must have been billeting
they must have been billeting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not billet
you must not billet
he must not billet
we must not billet
you must not billet
they must not billet 	I must not be billeting
you must not be billeting
he must not be billeting
we must not be billeting
you must not be billeting
they must not be billeting	I must not have billeted
you must not have billeted
he must not have billeted
we must not have billeted
you must not have billeted
they must not have billeted	I must not have been billeting
you must not have been billeting
he must not have been billeting
we must not have been billeting
you must not have been billeting
they must not have been billeting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I billet?
must you billet?
must he billet?
must we billet?
must you billet?
must they billet? 	must I be billeting?
must you be billeting?
must he be billeting?
must we be billeting?
must you be billeting?
must they be billeting? 	must I have billeted?
must you have billeted?
must he have billeted?
must we have billeted?
must you have billeted?
must they have billeted? 	must I have been billeting?
must you have been billeting?
must he have been billeting?
must we have been billeting?
must you have been billeting?
must they have been billeting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not billet?
must you not billet?
must he not billet?
must we not billet?
must you not billet?
must they not billet? 	must I not be billeting?
must you not be billeting?
must he not be billeting?
must we not be billeting?
must you not be billeting?
must they not be billeting? 	must I not have billeted?
must you not have billeted?
must he not have billeted?
must we not have billeted?
must you not have billeted?
must they not have billeted? 	must I not have been billeting?
must you not have been billeting?
must he not have been billeting?
must we not have been billeting?
must you not have been billeting?
must they not have been billeting?