may preappoint
Regular verb: preappoint - preappointed- preappointed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may preappoint
you may preappoint
he may preappoint
we may preappoint
you may preappoint
they may preappoint 	I may be preappointing
you may be preappointing
he may be preappointing
we may be preappointing
you may be preappointing
they may be preappointing	I may have preappointed
you may have preappointed
he 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
he 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
he 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
he 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
he 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
he 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 he preappoint?
may we preappoint?
may you preappoint?
may they preappoint? 	may I be preappointing?
may you be preappointing?
may he be preappointing?
may we be preappointing?
may you be preappointing?
may they be preappointing? 	may I have preappointed?
may you have preappointed?
may he 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 he 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 he 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 he 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 he 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 he have been preappointing?
mayn't we have been preappointing?
mayn't you have been preappointing?
mayn't they have been preappointing?