may sneeze
Regular verb: sneeze - sneezed- sneezed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may sneeze
you may sneeze
she may sneeze
we may sneeze
you may sneeze
they may sneeze 	I may be sneezing
you may be sneezing
she may be sneezing
we may be sneezing
you may be sneezing
they may be sneezing	I may have sneezed
you may have sneezed
she may have sneezed
we may have sneezed
you may have sneezed
they may have sneezed	I may have been sneezing
you may have been sneezing
she may have been sneezing
we may have been sneezing
you may have been sneezing
they may have been sneezing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't sneeze
you mayn't sneeze
she mayn't sneeze
we mayn't sneeze
you mayn't sneeze
they mayn't sneeze 	I mayn't be sneezing
you mayn't be sneezing
she mayn't be sneezing
we mayn't be sneezing
you mayn't be sneezing
they mayn't be sneezing	I mayn't have sneezed
you mayn't have sneezed
she mayn't have sneezed
we mayn't have sneezed
you mayn't have sneezed
they mayn't have sneezed	I mayn't have been sneezing
you mayn't have been sneezing
she mayn't have been sneezing
we mayn't have been sneezing
you mayn't have been sneezing
they mayn't have been sneezing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I sneeze?
may you sneeze?
may she sneeze?
may we sneeze?
may you sneeze?
may they sneeze? 	may I be sneezing?
may you be sneezing?
may she be sneezing?
may we be sneezing?
may you be sneezing?
may they be sneezing? 	may I have sneezed?
may you have sneezed?
may she have sneezed?
may we have sneezed?
may you have sneezed?
may they have sneezed? 	may I have been sneezing?
may you have been sneezing?
may she have been sneezing?
may we have been sneezing?
may you have been sneezing?
may they have been sneezing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I sneeze?
mayn't you sneeze?
mayn't she sneeze?
mayn't we sneeze?
mayn't you sneeze?
mayn't they sneeze? 	mayn't I be sneezing?
mayn't you be sneezing?
mayn't she be sneezing?
mayn't we be sneezing?
mayn't you be sneezing?
mayn't they be sneezing? 	mayn't I have sneezed?
mayn't you have sneezed?
mayn't she have sneezed?
mayn't we have sneezed?
mayn't you have sneezed?
mayn't they have sneezed? 	mayn't I have been sneezing?
mayn't you have been sneezing?
mayn't she have been sneezing?
mayn't we have been sneezing?
mayn't you have been sneezing?
mayn't they have been sneezing?