English verb conjugation
MAY STALE

Regular verb: stale - staled - staled

Affirmation

Simple form	V-ing form
I may stale you may stale she may stale we may stale you may stale they may stale	I may be staling you may be staling she may be staling we may be staling you may be staling they may be staling
Perfect	V-ing perfect
I may have staled you may have staled she may have staled we may have staled you may have staled they may have staled	I may have been staling you may have been staling she may have been staling we may have been staling you may have been staling they may have been staling

Negation

Simple form	V-ing form
I mayn't stale you mayn't stale she mayn't stale we mayn't stale you mayn't stale they mayn't stale	I mayn't be staling you mayn't be staling she mayn't be staling we mayn't be staling you mayn't be staling they mayn't be staling
Perfect	V-ing perfect
I mayn't have staled you mayn't have staled she mayn't have staled we mayn't have staled you mayn't have staled they mayn't have staled	I mayn't have been staling you mayn't have been staling she mayn't have been staling we mayn't have been staling you mayn't have been staling they mayn't have been staling

Interrogative form

Simple form	V-ing form
may I stale? may you stale? may she stale? may we stale? may you stale? may they stale?	may I be staling? may you be staling? may she be staling? may we be staling? may you be staling? may they be staling?
Perfect	V-ing perfect
may I have staled? may you have staled? may she have staled? may we have staled? may you have staled? may they have staled?	may I have been staling? may you have been staling? may she have been staling? may we have been staling? may you have been staling? may they have been staling?

Interro-negative form

Simple form	V-ing form
mayn't I stale? mayn't you stale? mayn't she stale? mayn't we stale? mayn't you stale? mayn't they stale?	mayn't I be staling? mayn't you be staling? mayn't she be staling? mayn't we be staling? mayn't you be staling? mayn't they be staling?
Perfect	V-ing perfect
mayn't I have staled? mayn't you have staled? mayn't she have staled? mayn't we have staled? mayn't you have staled? mayn't they have staled?	mayn't I have been staling? mayn't you have been staling? mayn't she have been staling? mayn't we have been staling? mayn't you have been staling? mayn't they have been staling?