may preappoint
Regular verb: preappoint - preappointed- preappointed

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't preappoint
you mayn't preappoint
she mayn't preappoint
we mayn't preappoint
you mayn't preappoint
they mayn't preappoint 	I mayn't be preappointing
you mayn't be preappointing
she mayn't be preappointing
we mayn't be preappointing
you mayn't be preappointing
they mayn't be preappointing	I mayn't have preappointed
you mayn't have preappointed
she mayn't have preappointed
we mayn't have preappointed
you mayn't have preappointed
they mayn't have preappointed	I mayn't have been preappointing
you mayn't have been preappointing
she mayn't have been preappointing
we mayn't have been preappointing
you mayn't have been preappointing
they mayn't have been preappointing	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I preappoint?
mayn't you preappoint?
mayn't she preappoint?
mayn't we preappoint?
mayn't you preappoint?
mayn't they preappoint? 	mayn't I be preappointing?
mayn't you be preappointing?
mayn't she be preappointing?
mayn't we be preappointing?
mayn't you be preappointing?
mayn't they be preappointing? 	mayn't I have preappointed?
mayn't you have preappointed?
mayn't she have preappointed?
mayn't we have preappointed?
mayn't you have preappointed?
mayn't they have preappointed? 	mayn't I have been preappointing?
mayn't you have been preappointing?
mayn't she have been preappointing?
mayn't we have been preappointing?
mayn't you have been preappointing?
mayn't they have been preappointing?