English verb conjugation
MAY SKETCH

Regular verb: sketch - sketched - sketched

Affirmation

Simple form	V-ing form
I may sketch you may sketch she may sketch we may sketch you may sketch they may sketch	I may be sketching you may be sketching she may be sketching we may be sketching you may be sketching they may be sketching
Perfect	V-ing perfect
I may have sketched you may have sketched she may have sketched we may have sketched you may have sketched they may have sketched	I may have been sketching you may have been sketching she may have been sketching we may have been sketching you may have been sketching they may have been sketching

Negation

Simple form	V-ing form
I mayn't sketch you mayn't sketch she mayn't sketch we mayn't sketch you mayn't sketch they mayn't sketch	I mayn't be sketching you mayn't be sketching she mayn't be sketching we mayn't be sketching you mayn't be sketching they mayn't be sketching
Perfect	V-ing perfect
I mayn't have sketched you mayn't have sketched she mayn't have sketched we mayn't have sketched you mayn't have sketched they mayn't have sketched	I mayn't have been sketching you mayn't have been sketching she mayn't have been sketching we mayn't have been sketching you mayn't have been sketching they mayn't have been sketching

Interrogative form

Simple form	V-ing form
may I sketch? may you sketch? may she sketch? may we sketch? may you sketch? may they sketch?	may I be sketching? may you be sketching? may she be sketching? may we be sketching? may you be sketching? may they be sketching?
Perfect	V-ing perfect
may I have sketched? may you have sketched? may she have sketched? may we have sketched? may you have sketched? may they have sketched?	may I have been sketching? may you have been sketching? may she have been sketching? may we have been sketching? may you have been sketching? may they have been sketching?

Interro-negative form

Simple form	V-ing form
mayn't I sketch? mayn't you sketch? mayn't she sketch? mayn't we sketch? mayn't you sketch? mayn't they sketch?	mayn't I be sketching? mayn't you be sketching? mayn't she be sketching? mayn't we be sketching? mayn't you be sketching? mayn't they be sketching?
Perfect	V-ing perfect
mayn't I have sketched? mayn't you have sketched? mayn't she have sketched? mayn't we have sketched? mayn't you have sketched? mayn't they have sketched?	mayn't I have been sketching? mayn't you have been sketching? mayn't she have been sketching? mayn't we have been sketching? mayn't you have been sketching? mayn't they have been sketching?