English verb conjugation
MAY VAIL

Regular verb: vail - vailed - vailed

Affirmation

Simple form	V-ing form
I may vail you may vail he may vail we may vail you may vail they may vail	I may be vailing you may be vailing he may be vailing we may be vailing you may be vailing they may be vailing
Perfect	V-ing perfect
I may have vailed you may have vailed he may have vailed we may have vailed you may have vailed they may have vailed	I may have been vailing you may have been vailing he may have been vailing we may have been vailing you may have been vailing they may have been vailing

Negation

Simple form	V-ing form
I may not vail you may not vail he may not vail we may not vail you may not vail they may not vail	I may not be vailing you may not be vailing he may not be vailing we may not be vailing you may not be vailing they may not be vailing
Perfect	V-ing perfect
I may not have vailed you may not have vailed he may not have vailed we may not have vailed you may not have vailed they may not have vailed	I may not have been vailing you may not have been vailing he may not have been vailing we may not have been vailing you may not have been vailing they may not have been vailing

Interrogative form

Simple form	V-ing form
may I vail? may you vail? may he vail? may we vail? may you vail? may they vail?	may I be vailing? may you be vailing? may he be vailing? may we be vailing? may you be vailing? may they be vailing?
Perfect	V-ing perfect
may I have vailed? may you have vailed? may he have vailed? may we have vailed? may you have vailed? may they have vailed?	may I have been vailing? may you have been vailing? may he have been vailing? may we have been vailing? may you have been vailing? may they have been vailing?

Interro-negative form

Simple form	V-ing form
may I not vail? may you not vail? may he not vail? may we not vail? may you not vail? may they not vail?	may I not be vailing? may you not be vailing? may he not be vailing? may we not be vailing? may you not be vailing? may they not be vailing?
Perfect	V-ing perfect
may I not have vailed? may you not have vailed? may he not have vailed? may we not have vailed? may you not have vailed? may they not have vailed?	may I not have been vailing? may you not have been vailing? may he not have been vailing? may we not have been vailing? may you not have been vailing? may they not have been vailing?