English verb conjugation
MAY MODIFY

Regular verb: modify - modified - modified

Affirmation

Simple form	V-ing form
I may modify you may modify he may modify we may modify you may modify they may modify	I may be modifying you may be modifying he may be modifying we may be modifying you may be modifying they may be modifying
Perfect	V-ing perfect
I may have modified you may have modified he may have modified we may have modified you may have modified they may have modified	I may have been modifying you may have been modifying he may have been modifying we may have been modifying you may have been modifying they may have been modifying

Negation

Simple form	V-ing form
I may not modify you may not modify he may not modify we may not modify you may not modify they may not modify	I may not be modifying you may not be modifying he may not be modifying we may not be modifying you may not be modifying they may not be modifying
Perfect	V-ing perfect
I may not have modified you may not have modified he may not have modified we may not have modified you may not have modified they may not have modified	I may not have been modifying you may not have been modifying he may not have been modifying we may not have been modifying you may not have been modifying they may not have been modifying

Interrogative form

Simple form	V-ing form
may I modify? may you modify? may he modify? may we modify? may you modify? may they modify?	may I be modifying? may you be modifying? may he be modifying? may we be modifying? may you be modifying? may they be modifying?
Perfect	V-ing perfect
may I have modified? may you have modified? may he have modified? may we have modified? may you have modified? may they have modified?	may I have been modifying? may you have been modifying? may he have been modifying? may we have been modifying? may you have been modifying? may they have been modifying?

Interro-negative form

Simple form	V-ing form
may I not modify? may you not modify? may he not modify? may we not modify? may you not modify? may they not modify?	may I not be modifying? may you not be modifying? may he not be modifying? may we not be modifying? may you not be modifying? may they not be modifying?
Perfect	V-ing perfect
may I not have modified? may you not have modified? may he not have modified? may we not have modified? may you not have modified? may they not have modified?	may I not have been modifying? may you not have been modifying? may he not have been modifying? may we not have been modifying? may you not have been modifying? may they not have been modifying?