may celebrate
Regular verb: celebrate - celebrated- celebrated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may celebrate
you may celebrate
he may celebrate
we may celebrate
you may celebrate
they may celebrate 	I may be celebrating
you may be celebrating
he may be celebrating
we may be celebrating
you may be celebrating
they may be celebrating	I may have celebrated
you may have celebrated
he may have celebrated
we may have celebrated
you may have celebrated
they may have celebrated	I may have been celebrating
you may have been celebrating
he may have been celebrating
we may have been celebrating
you may have been celebrating
they may have been celebrating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't celebrate
you mayn't celebrate
he mayn't celebrate
we mayn't celebrate
you mayn't celebrate
they mayn't celebrate 	I mayn't be celebrating
you mayn't be celebrating
he mayn't be celebrating
we mayn't be celebrating
you mayn't be celebrating
they mayn't be celebrating	I mayn't have celebrated
you mayn't have celebrated
he mayn't have celebrated
we mayn't have celebrated
you mayn't have celebrated
they mayn't have celebrated	I mayn't have been celebrating
you mayn't have been celebrating
he mayn't have been celebrating
we mayn't have been celebrating
you mayn't have been celebrating
they mayn't have been celebrating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I celebrate?
may you celebrate?
may he celebrate?
may we celebrate?
may you celebrate?
may they celebrate? 	may I be celebrating?
may you be celebrating?
may he be celebrating?
may we be celebrating?
may you be celebrating?
may they be celebrating? 	may I have celebrated?
may you have celebrated?
may he have celebrated?
may we have celebrated?
may you have celebrated?
may they have celebrated? 	may I have been celebrating?
may you have been celebrating?
may he have been celebrating?
may we have been celebrating?
may you have been celebrating?
may they have been celebrating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I celebrate?
mayn't you celebrate?
mayn't he celebrate?
mayn't we celebrate?
mayn't you celebrate?
mayn't they celebrate? 	mayn't I be celebrating?
mayn't you be celebrating?
mayn't he be celebrating?
mayn't we be celebrating?
mayn't you be celebrating?
mayn't they be celebrating? 	mayn't I have celebrated?
mayn't you have celebrated?
mayn't he have celebrated?
mayn't we have celebrated?
mayn't you have celebrated?
mayn't they have celebrated? 	mayn't I have been celebrating?
mayn't you have been celebrating?
mayn't he have been celebrating?
mayn't we have been celebrating?
mayn't you have been celebrating?
mayn't they have been celebrating?