English verb conjugation
MAY THWACK

Regular verb: thwack - thwacked - thwacked

Affirmation

Simple form	V-ing form
I may thwack you may thwack he may thwack we may thwack you may thwack they may thwack	I may be thwacking you may be thwacking he may be thwacking we may be thwacking you may be thwacking they may be thwacking
Perfect	V-ing perfect
I may have thwacked you may have thwacked he may have thwacked we may have thwacked you may have thwacked they may have thwacked	I may have been thwacking you may have been thwacking he may have been thwacking we may have been thwacking you may have been thwacking they may have been thwacking

Negation

Simple form	V-ing form
I may not thwack you may not thwack he may not thwack we may not thwack you may not thwack they may not thwack	I may not be thwacking you may not be thwacking he may not be thwacking we may not be thwacking you may not be thwacking they may not be thwacking
Perfect	V-ing perfect
I may not have thwacked you may not have thwacked he may not have thwacked we may not have thwacked you may not have thwacked they may not have thwacked	I may not have been thwacking you may not have been thwacking he may not have been thwacking we may not have been thwacking you may not have been thwacking they may not have been thwacking

Interrogative form

Simple form	V-ing form
may I thwack? may you thwack? may he thwack? may we thwack? may you thwack? may they thwack?	may I be thwacking? may you be thwacking? may he be thwacking? may we be thwacking? may you be thwacking? may they be thwacking?
Perfect	V-ing perfect
may I have thwacked? may you have thwacked? may he have thwacked? may we have thwacked? may you have thwacked? may they have thwacked?	may I have been thwacking? may you have been thwacking? may he have been thwacking? may we have been thwacking? may you have been thwacking? may they have been thwacking?

Interro-negative form

Simple form	V-ing form
may I not thwack? may you not thwack? may he not thwack? may we not thwack? may you not thwack? may they not thwack?	may I not be thwacking? may you not be thwacking? may he not be thwacking? may we not be thwacking? may you not be thwacking? may they not be thwacking?
Perfect	V-ing perfect
may I not have thwacked? may you not have thwacked? may he not have thwacked? may we not have thwacked? may you not have thwacked? may they not have thwacked?	may I not have been thwacking? may you not have been thwacking? may he not have been thwacking? may we not have been thwacking? may you not have been thwacking? may they not have been thwacking?