may appear
Regular verb: appear - appeared- appeared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may appear
you may appear
he may appear
we may appear
you may appear
they may appear 	I may be appearing
you may be appearing
he may be appearing
we may be appearing
you may be appearing
they may be appearing	I may have appeared
you may have appeared
he may have appeared
we may have appeared
you may have appeared
they may have appeared	I may have been appearing
you may have been appearing
he may have been appearing
we may have been appearing
you may have been appearing
they may have been appearing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't appear
you mayn't appear
he mayn't appear
we mayn't appear
you mayn't appear
they mayn't appear 	I mayn't be appearing
you mayn't be appearing
he mayn't be appearing
we mayn't be appearing
you mayn't be appearing
they mayn't be appearing	I mayn't have appeared
you mayn't have appeared
he mayn't have appeared
we mayn't have appeared
you mayn't have appeared
they mayn't have appeared	I mayn't have been appearing
you mayn't have been appearing
he mayn't have been appearing
we mayn't have been appearing
you mayn't have been appearing
they mayn't have been appearing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I appear?
may you appear?
may he appear?
may we appear?
may you appear?
may they appear? 	may I be appearing?
may you be appearing?
may he be appearing?
may we be appearing?
may you be appearing?
may they be appearing? 	may I have appeared?
may you have appeared?
may he have appeared?
may we have appeared?
may you have appeared?
may they have appeared? 	may I have been appearing?
may you have been appearing?
may he have been appearing?
may we have been appearing?
may you have been appearing?
may they have been appearing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I appear?
mayn't you appear?
mayn't he appear?
mayn't we appear?
mayn't you appear?
mayn't they appear? 	mayn't I be appearing?
mayn't you be appearing?
mayn't he be appearing?
mayn't we be appearing?
mayn't you be appearing?
mayn't they be appearing? 	mayn't I have appeared?
mayn't you have appeared?
mayn't he have appeared?
mayn't we have appeared?
mayn't you have appeared?
mayn't they have appeared? 	mayn't I have been appearing?
mayn't you have been appearing?
mayn't he have been appearing?
mayn't we have been appearing?
mayn't you have been appearing?
mayn't they have been appearing?