English verb conjugation
MAY SING

Irregular verb: sing - sang - sung

Affirmation

Simple form	V-ing form
I may sing you may sing he may sing we may sing you may sing they may sing	I may be singing you may be singing he may be singing we may be singing you may be singing they may be singing
Perfect	V-ing perfect
I may have sung you may have sung he may have sung we may have sung you may have sung they may have sung	I may have been singing you may have been singing he may have been singing we may have been singing you may have been singing they may have been singing

Negation

Simple form	V-ing form
I mayn't sing you mayn't sing he mayn't sing we mayn't sing you mayn't sing they mayn't sing	I mayn't be singing you mayn't be singing he mayn't be singing we mayn't be singing you mayn't be singing they mayn't be singing
Perfect	V-ing perfect
I mayn't have sung you mayn't have sung he mayn't have sung we mayn't have sung you mayn't have sung they mayn't have sung	I mayn't have been singing you mayn't have been singing he mayn't have been singing we mayn't have been singing you mayn't have been singing they mayn't have been singing

Interrogative form

Simple form	V-ing form
may I sing? may you sing? may he sing? may we sing? may you sing? may they sing?	may I be singing? may you be singing? may he be singing? may we be singing? may you be singing? may they be singing?
Perfect	V-ing perfect
may I have sung? may you have sung? may he have sung? may we have sung? may you have sung? may they have sung?	may I have been singing? may you have been singing? may he have been singing? may we have been singing? may you have been singing? may they have been singing?

Interro-negative form

Simple form	V-ing form
mayn't I sing? mayn't you sing? mayn't he sing? mayn't we sing? mayn't you sing? mayn't they sing?	mayn't I be singing? mayn't you be singing? mayn't he be singing? mayn't we be singing? mayn't you be singing? mayn't they be singing?
Perfect	V-ing perfect
mayn't I have sung? mayn't you have sung? mayn't he have sung? mayn't we have sung? mayn't you have sung? mayn't they have sung?	mayn't I have been singing? mayn't you have been singing? mayn't he have been singing? mayn't we have been singing? mayn't you have been singing? mayn't they have been singing?