may preaccustom
Regular verb: preaccustom - preaccustomed- preaccustomed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may preaccustom
you may preaccustom
he may preaccustom
we may preaccustom
you may preaccustom
they may preaccustom 	I may be preaccustoming
you may be preaccustoming
he may be preaccustoming
we may be preaccustoming
you may be preaccustoming
they may be preaccustoming	I may have preaccustomed
you may have preaccustomed
he may have preaccustomed
we may have preaccustomed
you may have preaccustomed
they may have preaccustomed	I may have been preaccustoming
you may have been preaccustoming
he may have been preaccustoming
we may have been preaccustoming
you may have been preaccustoming
they may have been preaccustoming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't preaccustom
you mayn't preaccustom
he mayn't preaccustom
we mayn't preaccustom
you mayn't preaccustom
they mayn't preaccustom 	I mayn't be preaccustoming
you mayn't be preaccustoming
he mayn't be preaccustoming
we mayn't be preaccustoming
you mayn't be preaccustoming
they mayn't be preaccustoming	I mayn't have preaccustomed
you mayn't have preaccustomed
he mayn't have preaccustomed
we mayn't have preaccustomed
you mayn't have preaccustomed
they mayn't have preaccustomed	I mayn't have been preaccustoming
you mayn't have been preaccustoming
he mayn't have been preaccustoming
we mayn't have been preaccustoming
you mayn't have been preaccustoming
they mayn't have been preaccustoming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I preaccustom?
may you preaccustom?
may he preaccustom?
may we preaccustom?
may you preaccustom?
may they preaccustom? 	may I be preaccustoming?
may you be preaccustoming?
may he be preaccustoming?
may we be preaccustoming?
may you be preaccustoming?
may they be preaccustoming? 	may I have preaccustomed?
may you have preaccustomed?
may he have preaccustomed?
may we have preaccustomed?
may you have preaccustomed?
may they have preaccustomed? 	may I have been preaccustoming?
may you have been preaccustoming?
may he have been preaccustoming?
may we have been preaccustoming?
may you have been preaccustoming?
may they have been preaccustoming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I preaccustom?
mayn't you preaccustom?
mayn't he preaccustom?
mayn't we preaccustom?
mayn't you preaccustom?
mayn't they preaccustom? 	mayn't I be preaccustoming?
mayn't you be preaccustoming?
mayn't he be preaccustoming?
mayn't we be preaccustoming?
mayn't you be preaccustoming?
mayn't they be preaccustoming? 	mayn't I have preaccustomed?
mayn't you have preaccustomed?
mayn't he have preaccustomed?
mayn't we have preaccustomed?
mayn't you have preaccustomed?
mayn't they have preaccustomed? 	mayn't I have been preaccustoming?
mayn't you have been preaccustoming?
mayn't he have been preaccustoming?
mayn't we have been preaccustoming?
mayn't you have been preaccustoming?
mayn't they have been preaccustoming?