may sing
Verbo irregular: sing - sang- sung

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may sing
you may sing
she may sing
we may sing
you may sing
they may sing 	I may be singing
you may be singing
she may be singing
we may be singing
you may be singing
they may be singing	I may have sung
you may have sung
she 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
she may have been singing
we may have been singing
you may have been singing
they may have been singing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not sing
you may not sing
she may not sing
we may not sing
you may not sing
they may not sing 	I may not be singing
you may not be singing
she may not be singing
we may not be singing
you may not be singing
they may not be singing	I may not have sung
you may not have sung
she may not have sung
we may not have sung
you may not have sung
they may not have sung	I may not have been singing
you may not have been singing
she may not have been singing
we may not have been singing
you may not have been singing
they may not have been singing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I sing?
may you sing?
may she sing?
may we sing?
may you sing?
may they sing? 	may I be singing?
may you be singing?
may she be singing?
may we be singing?
may you be singing?
may they be singing? 	may I have sung?
may you have sung?
may she 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 she have been singing?
may we have been singing?
may you have been singing?
may they have been singing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not sing?
may you not sing?
may she not sing?
may we not sing?
may you not sing?
may they not sing? 	may I not be singing?
may you not be singing?
may she not be singing?
may we not be singing?
may you not be singing?
may they not be singing? 	may I not have sung?
may you not have sung?
may she not have sung?
may we not have sung?
may you not have sung?
may they not have sung? 	may I not have been singing?
may you not have been singing?
may she not have been singing?
may we not have been singing?
may you not have been singing?
may they not have been singing?