may lighten
Verbo regular: lighten - lightened- lightened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may lighten
you may lighten
he may lighten
we may lighten
you may lighten
they may lighten 	I may be lightening
you may be lightening
he may be lightening
we may be lightening
you may be lightening
they may be lightening	I may have lightened
you may have lightened
he may have lightened
we may have lightened
you may have lightened
they may have lightened	I may have been lightening
you may have been lightening
he may have been lightening
we may have been lightening
you may have been lightening
they may have been lightening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not lighten
you may not lighten
he may not lighten
we may not lighten
you may not lighten
they may not lighten 	I may not be lightening
you may not be lightening
he may not be lightening
we may not be lightening
you may not be lightening
they may not be lightening	I may not have lightened
you may not have lightened
he may not have lightened
we may not have lightened
you may not have lightened
they may not have lightened	I may not have been lightening
you may not have been lightening
he may not have been lightening
we may not have been lightening
you may not have been lightening
they may not have been lightening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I lighten?
may you lighten?
may he lighten?
may we lighten?
may you lighten?
may they lighten? 	may I be lightening?
may you be lightening?
may he be lightening?
may we be lightening?
may you be lightening?
may they be lightening? 	may I have lightened?
may you have lightened?
may he have lightened?
may we have lightened?
may you have lightened?
may they have lightened? 	may I have been lightening?
may you have been lightening?
may he have been lightening?
may we have been lightening?
may you have been lightening?
may they have been lightening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not lighten?
may you not lighten?
may he not lighten?
may we not lighten?
may you not lighten?
may they not lighten? 	may I not be lightening?
may you not be lightening?
may he not be lightening?
may we not be lightening?
may you not be lightening?
may they not be lightening? 	may I not have lightened?
may you not have lightened?
may he not have lightened?
may we not have lightened?
may you not have lightened?
may they not have lightened? 	may I not have been lightening?
may you not have been lightening?
may he not have been lightening?
may we not have been lightening?
may you not have been lightening?
may they not have been lightening?