English verb conjugation
MAY STUMP

Regular verb: stump - stumped - stumped

Affirmation

Simple form	V-ing form
I may stump you may stump he may stump we may stump you may stump they may stump	I may be stumping you may be stumping he may be stumping we may be stumping you may be stumping they may be stumping
Perfect	V-ing perfect
I may have stumped you may have stumped he may have stumped we may have stumped you may have stumped they may have stumped	I may have been stumping you may have been stumping he may have been stumping we may have been stumping you may have been stumping they may have been stumping

Negation

Simple form	V-ing form
I mayn't stump you mayn't stump he mayn't stump we mayn't stump you mayn't stump they mayn't stump	I mayn't be stumping you mayn't be stumping he mayn't be stumping we mayn't be stumping you mayn't be stumping they mayn't be stumping
Perfect	V-ing perfect
I mayn't have stumped you mayn't have stumped he mayn't have stumped we mayn't have stumped you mayn't have stumped they mayn't have stumped	I mayn't have been stumping you mayn't have been stumping he mayn't have been stumping we mayn't have been stumping you mayn't have been stumping they mayn't have been stumping

Interrogative form

Simple form	V-ing form
may I stump? may you stump? may he stump? may we stump? may you stump? may they stump?	may I be stumping? may you be stumping? may he be stumping? may we be stumping? may you be stumping? may they be stumping?
Perfect	V-ing perfect
may I have stumped? may you have stumped? may he have stumped? may we have stumped? may you have stumped? may they have stumped?	may I have been stumping? may you have been stumping? may he have been stumping? may we have been stumping? may you have been stumping? may they have been stumping?

Interro-negative form

Simple form	V-ing form
mayn't I stump? mayn't you stump? mayn't he stump? mayn't we stump? mayn't you stump? mayn't they stump?	mayn't I be stumping? mayn't you be stumping? mayn't he be stumping? mayn't we be stumping? mayn't you be stumping? mayn't they be stumping?
Perfect	V-ing perfect
mayn't I have stumped? mayn't you have stumped? mayn't he have stumped? mayn't we have stumped? mayn't you have stumped? mayn't they have stumped?	mayn't I have been stumping? mayn't you have been stumping? mayn't he have been stumping? mayn't we have been stumping? mayn't you have been stumping? mayn't they have been stumping?