English verb conjugation
MAY SMOOTHEN

Regular verb: smoothen - smoothened - smoothened

Affirmation

Simple form	V-ing form
I may smoothen you may smoothen he may smoothen we may smoothen you may smoothen they may smoothen	I may be smoothening you may be smoothening he may be smoothening we may be smoothening you may be smoothening they may be smoothening
Perfect	V-ing perfect
I may have smoothened you may have smoothened he may have smoothened we may have smoothened you may have smoothened they may have smoothened	I may have been smoothening you may have been smoothening he may have been smoothening we may have been smoothening you may have been smoothening they may have been smoothening

Negation

Simple form	V-ing form
I may not smoothen you may not smoothen he may not smoothen we may not smoothen you may not smoothen they may not smoothen	I may not be smoothening you may not be smoothening he may not be smoothening we may not be smoothening you may not be smoothening they may not be smoothening
Perfect	V-ing perfect
I may not have smoothened you may not have smoothened he may not have smoothened we may not have smoothened you may not have smoothened they may not have smoothened	I may not have been smoothening you may not have been smoothening he may not have been smoothening we may not have been smoothening you may not have been smoothening they may not have been smoothening

Interrogative form

Simple form	V-ing form
may I smoothen? may you smoothen? may he smoothen? may we smoothen? may you smoothen? may they smoothen?	may I be smoothening? may you be smoothening? may he be smoothening? may we be smoothening? may you be smoothening? may they be smoothening?
Perfect	V-ing perfect
may I have smoothened? may you have smoothened? may he have smoothened? may we have smoothened? may you have smoothened? may they have smoothened?	may I have been smoothening? may you have been smoothening? may he have been smoothening? may we have been smoothening? may you have been smoothening? may they have been smoothening?

Interro-negative form

Simple form	V-ing form
may I not smoothen? may you not smoothen? may he not smoothen? may we not smoothen? may you not smoothen? may they not smoothen?	may I not be smoothening? may you not be smoothening? may he not be smoothening? may we not be smoothening? may you not be smoothening? may they not be smoothening?
Perfect	V-ing perfect
may I not have smoothened? may you not have smoothened? may he not have smoothened? may we not have smoothened? may you not have smoothened? may they not have smoothened?	may I not have been smoothening? may you not have been smoothening? may he not have been smoothening? may we not have been smoothening? may you not have been smoothening? may they not have been smoothening?