English verb conjugation
MAY SWEETEN

Regular verb: sweeten - sweetened - sweetened

Affirmation

Simple form	V-ing form
I may sweeten you may sweeten he may sweeten we may sweeten you may sweeten they may sweeten	I may be sweetening you may be sweetening he may be sweetening we may be sweetening you may be sweetening they may be sweetening
Perfect	V-ing perfect
I may have sweetened you may have sweetened he may have sweetened we may have sweetened you may have sweetened they may have sweetened	I may have been sweetening you may have been sweetening he may have been sweetening we may have been sweetening you may have been sweetening they may have been sweetening

Negation

Simple form	V-ing form
I may not sweeten you may not sweeten he may not sweeten we may not sweeten you may not sweeten they may not sweeten	I may not be sweetening you may not be sweetening he may not be sweetening we may not be sweetening you may not be sweetening they may not be sweetening
Perfect	V-ing perfect
I may not have sweetened you may not have sweetened he may not have sweetened we may not have sweetened you may not have sweetened they may not have sweetened	I may not have been sweetening you may not have been sweetening he may not have been sweetening we may not have been sweetening you may not have been sweetening they may not have been sweetening

Interrogative form

Simple form	V-ing form
may I sweeten? may you sweeten? may he sweeten? may we sweeten? may you sweeten? may they sweeten?	may I be sweetening? may you be sweetening? may he be sweetening? may we be sweetening? may you be sweetening? may they be sweetening?
Perfect	V-ing perfect
may I have sweetened? may you have sweetened? may he have sweetened? may we have sweetened? may you have sweetened? may they have sweetened?	may I have been sweetening? may you have been sweetening? may he have been sweetening? may we have been sweetening? may you have been sweetening? may they have been sweetening?

Interro-negative form

Simple form	V-ing form
may I not sweeten? may you not sweeten? may he not sweeten? may we not sweeten? may you not sweeten? may they not sweeten?	may I not be sweetening? may you not be sweetening? may he not be sweetening? may we not be sweetening? may you not be sweetening? may they not be sweetening?
Perfect	V-ing perfect
may I not have sweetened? may you not have sweetened? may he not have sweetened? may we not have sweetened? may you not have sweetened? may they not have sweetened?	may I not have been sweetening? may you not have been sweetening? may he not have been sweetening? may we not have been sweetening? may you not have been sweetening? may they not have been sweetening?