English verb conjugation
MAY BIRCH

Regular verb: birch - birched - birched

Affirmation

Simple form	V-ing form
I may birch you may birch he may birch we may birch you may birch they may birch	I may be birching you may be birching he may be birching we may be birching you may be birching they may be birching
Perfect	V-ing perfect
I may have birched you may have birched he may have birched we may have birched you may have birched they may have birched	I may have been birching you may have been birching he may have been birching we may have been birching you may have been birching they may have been birching

Negation

Simple form	V-ing form
I may not birch you may not birch he may not birch we may not birch you may not birch they may not birch	I may not be birching you may not be birching he may not be birching we may not be birching you may not be birching they may not be birching
Perfect	V-ing perfect
I may not have birched you may not have birched he may not have birched we may not have birched you may not have birched they may not have birched	I may not have been birching you may not have been birching he may not have been birching we may not have been birching you may not have been birching they may not have been birching

Interrogative form

Simple form	V-ing form
may I birch? may you birch? may he birch? may we birch? may you birch? may they birch?	may I be birching? may you be birching? may he be birching? may we be birching? may you be birching? may they be birching?
Perfect	V-ing perfect
may I have birched? may you have birched? may he have birched? may we have birched? may you have birched? may they have birched?	may I have been birching? may you have been birching? may he have been birching? may we have been birching? may you have been birching? may they have been birching?

Interro-negative form

Simple form	V-ing form
may I not birch? may you not birch? may he not birch? may we not birch? may you not birch? may they not birch?	may I not be birching? may you not be birching? may he not be birching? may we not be birching? may you not be birching? may they not be birching?
Perfect	V-ing perfect
may I not have birched? may you not have birched? may he not have birched? may we not have birched? may you not have birched? may they not have birched?	may I not have been birching? may you not have been birching? may he not have been birching? may we not have been birching? may you not have been birching? may they not have been birching?