English verb conjugation
MAY THREAD

Regular verb: thread - threaded - threaded

Affirmation

Simple form	V-ing form
I may thread you may thread he may thread we may thread you may thread they may thread	I may be threading you may be threading he may be threading we may be threading you may be threading they may be threading
Perfect	V-ing perfect
I may have threaded you may have threaded he may have threaded we may have threaded you may have threaded they may have threaded	I may have been threading you may have been threading he may have been threading we may have been threading you may have been threading they may have been threading

Negation

Simple form	V-ing form
I mayn't thread you mayn't thread he mayn't thread we mayn't thread you mayn't thread they mayn't thread	I mayn't be threading you mayn't be threading he mayn't be threading we mayn't be threading you mayn't be threading they mayn't be threading
Perfect	V-ing perfect
I mayn't have threaded you mayn't have threaded he mayn't have threaded we mayn't have threaded you mayn't have threaded they mayn't have threaded	I mayn't have been threading you mayn't have been threading he mayn't have been threading we mayn't have been threading you mayn't have been threading they mayn't have been threading

Interrogative form

Simple form	V-ing form
may I thread? may you thread? may he thread? may we thread? may you thread? may they thread?	may I be threading? may you be threading? may he be threading? may we be threading? may you be threading? may they be threading?
Perfect	V-ing perfect
may I have threaded? may you have threaded? may he have threaded? may we have threaded? may you have threaded? may they have threaded?	may I have been threading? may you have been threading? may he have been threading? may we have been threading? may you have been threading? may they have been threading?

Interro-negative form

Simple form	V-ing form
mayn't I thread? mayn't you thread? mayn't he thread? mayn't we thread? mayn't you thread? mayn't they thread?	mayn't I be threading? mayn't you be threading? mayn't he be threading? mayn't we be threading? mayn't you be threading? mayn't they be threading?
Perfect	V-ing perfect
mayn't I have threaded? mayn't you have threaded? mayn't he have threaded? mayn't we have threaded? mayn't you have threaded? mayn't they have threaded?	mayn't I have been threading? mayn't you have been threading? mayn't he have been threading? mayn't we have been threading? mayn't you have been threading? mayn't they have been threading?