may shift
Verbo regular: shift - shifted- shifted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may shift
you may shift
he may shift
we may shift
you may shift
they may shift 	I may be shifting
you may be shifting
he may be shifting
we may be shifting
you may be shifting
they may be shifting	I may have shifted
you may have shifted
he may have shifted
we may have shifted
you may have shifted
they may have shifted	I may have been shifting
you may have been shifting
he may have been shifting
we may have been shifting
you may have been shifting
they may have been shifting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not shift
you may not shift
he may not shift
we may not shift
you may not shift
they may not shift 	I may not be shifting
you may not be shifting
he may not be shifting
we may not be shifting
you may not be shifting
they may not be shifting	I may not have shifted
you may not have shifted
he may not have shifted
we may not have shifted
you may not have shifted
they may not have shifted	I may not have been shifting
you may not have been shifting
he may not have been shifting
we may not have been shifting
you may not have been shifting
they may not have been shifting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I shift?
may you shift?
may he shift?
may we shift?
may you shift?
may they shift? 	may I be shifting?
may you be shifting?
may he be shifting?
may we be shifting?
may you be shifting?
may they be shifting? 	may I have shifted?
may you have shifted?
may he have shifted?
may we have shifted?
may you have shifted?
may they have shifted? 	may I have been shifting?
may you have been shifting?
may he have been shifting?
may we have been shifting?
may you have been shifting?
may they have been shifting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not shift?
may you not shift?
may he not shift?
may we not shift?
may you not shift?
may they not shift? 	may I not be shifting?
may you not be shifting?
may he not be shifting?
may we not be shifting?
may you not be shifting?
may they not be shifting? 	may I not have shifted?
may you not have shifted?
may he not have shifted?
may we not have shifted?
may you not have shifted?
may they not have shifted? 	may I not have been shifting?
may you not have been shifting?
may he not have been shifting?
may we not have been shifting?
may you not have been shifting?
may they not have been shifting?