must preappoint
Regular verb: preappoint - preappointed- preappointed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must preappoint
you must preappoint
he must preappoint
we must preappoint
you must preappoint
they must preappoint 	I must be preappointing
you must be preappointing
he must be preappointing
we must be preappointing
you must be preappointing
they must be preappointing	I must have preappointed
you must have preappointed
he must have preappointed
we must have preappointed
you must have preappointed
they must have preappointed	I must have been preappointing
you must have been preappointing
he must have been preappointing
we must have been preappointing
you must have been preappointing
they must have been preappointing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not preappoint
you must not preappoint
he must not preappoint
we must not preappoint
you must not preappoint
they must not preappoint 	I must not be preappointing
you must not be preappointing
he must not be preappointing
we must not be preappointing
you must not be preappointing
they must not be preappointing	I must not have preappointed
you must not have preappointed
he must not have preappointed
we must not have preappointed
you must not have preappointed
they must not have preappointed	I must not have been preappointing
you must not have been preappointing
he must not have been preappointing
we must not have been preappointing
you must not have been preappointing
they must not have been preappointing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I preappoint?
must you preappoint?
must he preappoint?
must we preappoint?
must you preappoint?
must they preappoint? 	must I be preappointing?
must you be preappointing?
must he be preappointing?
must we be preappointing?
must you be preappointing?
must they be preappointing? 	must I have preappointed?
must you have preappointed?
must he have preappointed?
must we have preappointed?
must you have preappointed?
must they have preappointed? 	must I have been preappointing?
must you have been preappointing?
must he have been preappointing?
must we have been preappointing?
must you have been preappointing?
must they have been preappointing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not preappoint?
must you not preappoint?
must he not preappoint?
must we not preappoint?
must you not preappoint?
must they not preappoint? 	must I not be preappointing?
must you not be preappointing?
must he not be preappointing?
must we not be preappointing?
must you not be preappointing?
must they not be preappointing? 	must I not have preappointed?
must you not have preappointed?
must he not have preappointed?
must we not have preappointed?
must you not have preappointed?
must they not have preappointed? 	must I not have been preappointing?
must you not have been preappointing?
must he not have been preappointing?
must we not have been preappointing?
must you not have been preappointing?
must they not have been preappointing?