may smack
Regular verb: smack - smacked- smacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may smack
you may smack
she may smack
we may smack
you may smack
they may smack 	I may be smacking
you may be smacking
she may be smacking
we may be smacking
you may be smacking
they may be smacking	I may have smacked
you may have smacked
she may have smacked
we may have smacked
you may have smacked
they may have smacked	I may have been smacking
you may have been smacking
she may have been smacking
we may have been smacking
you may have been smacking
they may have been smacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not smack
you may not smack
she may not smack
we may not smack
you may not smack
they may not smack 	I may not be smacking
you may not be smacking
she may not be smacking
we may not be smacking
you may not be smacking
they may not be smacking	I may not have smacked
you may not have smacked
she may not have smacked
we may not have smacked
you may not have smacked
they may not have smacked	I may not have been smacking
you may not have been smacking
she may not have been smacking
we may not have been smacking
you may not have been smacking
they may not have been smacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I smack?
may you smack?
may she smack?
may we smack?
may you smack?
may they smack? 	may I be smacking?
may you be smacking?
may she be smacking?
may we be smacking?
may you be smacking?
may they be smacking? 	may I have smacked?
may you have smacked?
may she have smacked?
may we have smacked?
may you have smacked?
may they have smacked? 	may I have been smacking?
may you have been smacking?
may she have been smacking?
may we have been smacking?
may you have been smacking?
may they have been smacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not smack?
may you not smack?
may she not smack?
may we not smack?
may you not smack?
may they not smack? 	may I not be smacking?
may you not be smacking?
may she not be smacking?
may we not be smacking?
may you not be smacking?
may they not be smacking? 	may I not have smacked?
may you not have smacked?
may she not have smacked?
may we not have smacked?
may you not have smacked?
may they not have smacked? 	may I not have been smacking?
may you not have been smacking?
may she not have been smacking?
may we not have been smacking?
may you not have been smacking?
may they not have been smacking?