English verb conjugation
MAY LIGHTEN

Regular verb: lighten - lightened - lightened

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?