may untack
Regular verb: untack - untacked- untacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may untack
you may untack
she may untack
we may untack
you may untack
they may untack 	I may be untacking
you may be untacking
she may be untacking
we may be untacking
you may be untacking
they may be untacking	I may have untacked
you may have untacked
she may have untacked
we may have untacked
you may have untacked
they may have untacked	I may have been untacking
you may have been untacking
she may have been untacking
we may have been untacking
you may have been untacking
they may have been untacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't untack
you mayn't untack
she mayn't untack
we mayn't untack
you mayn't untack
they mayn't untack 	I mayn't be untacking
you mayn't be untacking
she mayn't be untacking
we mayn't be untacking
you mayn't be untacking
they mayn't be untacking	I mayn't have untacked
you mayn't have untacked
she mayn't have untacked
we mayn't have untacked
you mayn't have untacked
they mayn't have untacked	I mayn't have been untacking
you mayn't have been untacking
she mayn't have been untacking
we mayn't have been untacking
you mayn't have been untacking
they mayn't have been untacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I untack?
may you untack?
may she untack?
may we untack?
may you untack?
may they untack? 	may I be untacking?
may you be untacking?
may she be untacking?
may we be untacking?
may you be untacking?
may they be untacking? 	may I have untacked?
may you have untacked?
may she have untacked?
may we have untacked?
may you have untacked?
may they have untacked? 	may I have been untacking?
may you have been untacking?
may she have been untacking?
may we have been untacking?
may you have been untacking?
may they have been untacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I untack?
mayn't you untack?
mayn't she untack?
mayn't we untack?
mayn't you untack?
mayn't they untack? 	mayn't I be untacking?
mayn't you be untacking?
mayn't she be untacking?
mayn't we be untacking?
mayn't you be untacking?
mayn't they be untacking? 	mayn't I have untacked?
mayn't you have untacked?
mayn't she have untacked?
mayn't we have untacked?
mayn't you have untacked?
mayn't they have untacked? 	mayn't I have been untacking?
mayn't you have been untacking?
mayn't she have been untacking?
mayn't we have been untacking?
mayn't you have been untacking?
mayn't they have been untacking?