may stumble
Verbo regular: stumble - stumbled- stumbled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may stumble
you may stumble
he may stumble
we may stumble
you may stumble
they may stumble 	I may be stumbling
you may be stumbling
he may be stumbling
we may be stumbling
you may be stumbling
they may be stumbling	I may have stumbled
you may have stumbled
he may have stumbled
we may have stumbled
you may have stumbled
they may have stumbled	I may have been stumbling
you may have been stumbling
he may have been stumbling
we may have been stumbling
you may have been stumbling
they may have been stumbling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not stumble
you may not stumble
he may not stumble
we may not stumble
you may not stumble
they may not stumble 	I may not be stumbling
you may not be stumbling
he may not be stumbling
we may not be stumbling
you may not be stumbling
they may not be stumbling	I may not have stumbled
you may not have stumbled
he may not have stumbled
we may not have stumbled
you may not have stumbled
they may not have stumbled	I may not have been stumbling
you may not have been stumbling
he may not have been stumbling
we may not have been stumbling
you may not have been stumbling
they may not have been stumbling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I stumble?
may you stumble?
may he stumble?
may we stumble?
may you stumble?
may they stumble? 	may I be stumbling?
may you be stumbling?
may he be stumbling?
may we be stumbling?
may you be stumbling?
may they be stumbling? 	may I have stumbled?
may you have stumbled?
may he have stumbled?
may we have stumbled?
may you have stumbled?
may they have stumbled? 	may I have been stumbling?
may you have been stumbling?
may he have been stumbling?
may we have been stumbling?
may you have been stumbling?
may they have been stumbling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not stumble?
may you not stumble?
may he not stumble?
may we not stumble?
may you not stumble?
may they not stumble? 	may I not be stumbling?
may you not be stumbling?
may he not be stumbling?
may we not be stumbling?
may you not be stumbling?
may they not be stumbling? 	may I not have stumbled?
may you not have stumbled?
may he not have stumbled?
may we not have stumbled?
may you not have stumbled?
may they not have stumbled? 	may I not have been stumbling?
may you not have been stumbling?
may he not have been stumbling?
may we not have been stumbling?
may you not have been stumbling?
may they not have been stumbling?