may rethread
Regular verb: rethread - rethreaded- rethreaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may rethread
you may rethread
he may rethread
we may rethread
you may rethread
they may rethread 	I may be rethreading
you may be rethreading
he may be rethreading
we may be rethreading
you may be rethreading
they may be rethreading	I may have rethreaded
you may have rethreaded
he may have rethreaded
we may have rethreaded
you may have rethreaded
they may have rethreaded	I may have been rethreading
you may have been rethreading
he may have been rethreading
we may have been rethreading
you may have been rethreading
they may have been rethreading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't rethread
you mayn't rethread
he mayn't rethread
we mayn't rethread
you mayn't rethread
they mayn't rethread 	I mayn't be rethreading
you mayn't be rethreading
he mayn't be rethreading
we mayn't be rethreading
you mayn't be rethreading
they mayn't be rethreading	I mayn't have rethreaded
you mayn't have rethreaded
he mayn't have rethreaded
we mayn't have rethreaded
you mayn't have rethreaded
they mayn't have rethreaded	I mayn't have been rethreading
you mayn't have been rethreading
he mayn't have been rethreading
we mayn't have been rethreading
you mayn't have been rethreading
they mayn't have been rethreading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I rethread?
may you rethread?
may he rethread?
may we rethread?
may you rethread?
may they rethread? 	may I be rethreading?
may you be rethreading?
may he be rethreading?
may we be rethreading?
may you be rethreading?
may they be rethreading? 	may I have rethreaded?
may you have rethreaded?
may he have rethreaded?
may we have rethreaded?
may you have rethreaded?
may they have rethreaded? 	may I have been rethreading?
may you have been rethreading?
may he have been rethreading?
may we have been rethreading?
may you have been rethreading?
may they have been rethreading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I rethread?
mayn't you rethread?
mayn't he rethread?
mayn't we rethread?
mayn't you rethread?
mayn't they rethread? 	mayn't I be rethreading?
mayn't you be rethreading?
mayn't he be rethreading?
mayn't we be rethreading?
mayn't you be rethreading?
mayn't they be rethreading? 	mayn't I have rethreaded?
mayn't you have rethreaded?
mayn't he have rethreaded?
mayn't we have rethreaded?
mayn't you have rethreaded?
mayn't they have rethreaded? 	mayn't I have been rethreading?
mayn't you have been rethreading?
mayn't he have been rethreading?
mayn't we have been rethreading?
mayn't you have been rethreading?
mayn't they have been rethreading?