English verb conjugation
MAY SCUM

Regular verb: scum - scummed - scummed

Affirmation

Simple form	V-ing form
I may scum you may scum he may scum we may scum you may scum they may scum	I may be scumming you may be scumming he may be scumming we may be scumming you may be scumming they may be scumming
Perfect	V-ing perfect
I may have scummed you may have scummed he may have scummed we may have scummed you may have scummed they may have scummed	I may have been scumming you may have been scumming he may have been scumming we may have been scumming you may have been scumming they may have been scumming

Negation

Simple form	V-ing form
I mayn't scum you mayn't scum he mayn't scum we mayn't scum you mayn't scum they mayn't scum	I mayn't be scumming you mayn't be scumming he mayn't be scumming we mayn't be scumming you mayn't be scumming they mayn't be scumming
Perfect	V-ing perfect
I mayn't have scummed you mayn't have scummed he mayn't have scummed we mayn't have scummed you mayn't have scummed they mayn't have scummed	I mayn't have been scumming you mayn't have been scumming he mayn't have been scumming we mayn't have been scumming you mayn't have been scumming they mayn't have been scumming

Interrogative form

Simple form	V-ing form
may I scum? may you scum? may he scum? may we scum? may you scum? may they scum?	may I be scumming? may you be scumming? may he be scumming? may we be scumming? may you be scumming? may they be scumming?
Perfect	V-ing perfect
may I have scummed? may you have scummed? may he have scummed? may we have scummed? may you have scummed? may they have scummed?	may I have been scumming? may you have been scumming? may he have been scumming? may we have been scumming? may you have been scumming? may they have been scumming?

Interro-negative form

Simple form	V-ing form
mayn't I scum? mayn't you scum? mayn't he scum? mayn't we scum? mayn't you scum? mayn't they scum?	mayn't I be scumming? mayn't you be scumming? mayn't he be scumming? mayn't we be scumming? mayn't you be scumming? mayn't they be scumming?
Perfect	V-ing perfect
mayn't I have scummed? mayn't you have scummed? mayn't he have scummed? mayn't we have scummed? mayn't you have scummed? mayn't they have scummed?	mayn't I have been scumming? mayn't you have been scumming? mayn't he have been scumming? mayn't we have been scumming? mayn't you have been scumming? mayn't they have been scumming?