may sharpen
Verbo regular: sharpen - sharpened- sharpened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may sharpen
you may sharpen
she may sharpen
we may sharpen
you may sharpen
they may sharpen 	I may be sharpening
you may be sharpening
she may be sharpening
we may be sharpening
you may be sharpening
they may be sharpening	I may have sharpened
you may have sharpened
she may have sharpened
we may have sharpened
you may have sharpened
they may have sharpened	I may have been sharpening
you may have been sharpening
she may have been sharpening
we may have been sharpening
you may have been sharpening
they may have been sharpening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not sharpen
you may not sharpen
she may not sharpen
we may not sharpen
you may not sharpen
they may not sharpen 	I may not be sharpening
you may not be sharpening
she may not be sharpening
we may not be sharpening
you may not be sharpening
they may not be sharpening	I may not have sharpened
you may not have sharpened
she may not have sharpened
we may not have sharpened
you may not have sharpened
they may not have sharpened	I may not have been sharpening
you may not have been sharpening
she may not have been sharpening
we may not have been sharpening
you may not have been sharpening
they may not have been sharpening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I sharpen?
may you sharpen?
may she sharpen?
may we sharpen?
may you sharpen?
may they sharpen? 	may I be sharpening?
may you be sharpening?
may she be sharpening?
may we be sharpening?
may you be sharpening?
may they be sharpening? 	may I have sharpened?
may you have sharpened?
may she have sharpened?
may we have sharpened?
may you have sharpened?
may they have sharpened? 	may I have been sharpening?
may you have been sharpening?
may she have been sharpening?
may we have been sharpening?
may you have been sharpening?
may they have been sharpening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not sharpen?
may you not sharpen?
may she not sharpen?
may we not sharpen?
may you not sharpen?
may they not sharpen? 	may I not be sharpening?
may you not be sharpening?
may she not be sharpening?
may we not be sharpening?
may you not be sharpening?
may they not be sharpening? 	may I not have sharpened?
may you not have sharpened?
may she not have sharpened?
may we not have sharpened?
may you not have sharpened?
may they not have sharpened? 	may I not have been sharpening?
may you not have been sharpening?
may she not have been sharpening?
may we not have been sharpening?
may you not have been sharpening?
may they not have been sharpening?