may frown
Verbo regular: frown - frowned- frowned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may frown
you may frown
he may frown
we may frown
you may frown
they may frown 	I may be frowning
you may be frowning
he may be frowning
we may be frowning
you may be frowning
they may be frowning	I may have frowned
you may have frowned
he may have frowned
we may have frowned
you may have frowned
they may have frowned	I may have been frowning
you may have been frowning
he may have been frowning
we may have been frowning
you may have been frowning
they may have been frowning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not frown
you may not frown
he may not frown
we may not frown
you may not frown
they may not frown 	I may not be frowning
you may not be frowning
he may not be frowning
we may not be frowning
you may not be frowning
they may not be frowning	I may not have frowned
you may not have frowned
he may not have frowned
we may not have frowned
you may not have frowned
they may not have frowned	I may not have been frowning
you may not have been frowning
he may not have been frowning
we may not have been frowning
you may not have been frowning
they may not have been frowning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I frown?
may you frown?
may he frown?
may we frown?
may you frown?
may they frown? 	may I be frowning?
may you be frowning?
may he be frowning?
may we be frowning?
may you be frowning?
may they be frowning? 	may I have frowned?
may you have frowned?
may he have frowned?
may we have frowned?
may you have frowned?
may they have frowned? 	may I have been frowning?
may you have been frowning?
may he have been frowning?
may we have been frowning?
may you have been frowning?
may they have been frowning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not frown?
may you not frown?
may he not frown?
may we not frown?
may you not frown?
may they not frown? 	may I not be frowning?
may you not be frowning?
may he not be frowning?
may we not be frowning?
may you not be frowning?
may they not be frowning? 	may I not have frowned?
may you not have frowned?
may he not have frowned?
may we not have frowned?
may you not have frowned?
may they not have frowned? 	may I not have been frowning?
may you not have been frowning?
may he not have been frowning?
may we not have been frowning?
may you not have been frowning?
may they not have been frowning?