English verb conjugation
MAY PERCUSS

Regular verb: percuss - percussed - percussed

Affirmation

Simple form	V-ing form
I may percuss you may percuss he may percuss we may percuss you may percuss they may percuss	I may be percussing you may be percussing he may be percussing we may be percussing you may be percussing they may be percussing
Perfect	V-ing perfect
I may have percussed you may have percussed he may have percussed we may have percussed you may have percussed they may have percussed	I may have been percussing you may have been percussing he may have been percussing we may have been percussing you may have been percussing they may have been percussing

Negation

Simple form	V-ing form
I mayn't percuss you mayn't percuss he mayn't percuss we mayn't percuss you mayn't percuss they mayn't percuss	I mayn't be percussing you mayn't be percussing he mayn't be percussing we mayn't be percussing you mayn't be percussing they mayn't be percussing
Perfect	V-ing perfect
I mayn't have percussed you mayn't have percussed he mayn't have percussed we mayn't have percussed you mayn't have percussed they mayn't have percussed	I mayn't have been percussing you mayn't have been percussing he mayn't have been percussing we mayn't have been percussing you mayn't have been percussing they mayn't have been percussing

Interrogative form

Simple form	V-ing form
may I percuss? may you percuss? may he percuss? may we percuss? may you percuss? may they percuss?	may I be percussing? may you be percussing? may he be percussing? may we be percussing? may you be percussing? may they be percussing?
Perfect	V-ing perfect
may I have percussed? may you have percussed? may he have percussed? may we have percussed? may you have percussed? may they have percussed?	may I have been percussing? may you have been percussing? may he have been percussing? may we have been percussing? may you have been percussing? may they have been percussing?

Interro-negative form

Simple form	V-ing form
mayn't I percuss? mayn't you percuss? mayn't he percuss? mayn't we percuss? mayn't you percuss? mayn't they percuss?	mayn't I be percussing? mayn't you be percussing? mayn't he be percussing? mayn't we be percussing? mayn't you be percussing? mayn't they be percussing?
Perfect	V-ing perfect
mayn't I have percussed? mayn't you have percussed? mayn't he have percussed? mayn't we have percussed? mayn't you have percussed? mayn't they have percussed?	mayn't I have been percussing? mayn't you have been percussing? mayn't he have been percussing? mayn't we have been percussing? mayn't you have been percussing? mayn't they have been percussing?