English verb conjugation
MAY UPEND

Regular verb: upend - upended - upended

Affirmation

Simple form	V-ing form
I may upend you may upend he may upend we may upend you may upend they may upend	I may be upending you may be upending he may be upending we may be upending you may be upending they may be upending
Perfect	V-ing perfect
I may have upended you may have upended he may have upended we may have upended you may have upended they may have upended	I may have been upending you may have been upending he may have been upending we may have been upending you may have been upending they may have been upending

Negation

Simple form	V-ing form
I may not upend you may not upend he may not upend we may not upend you may not upend they may not upend	I may not be upending you may not be upending he may not be upending we may not be upending you may not be upending they may not be upending
Perfect	V-ing perfect
I may not have upended you may not have upended he may not have upended we may not have upended you may not have upended they may not have upended	I may not have been upending you may not have been upending he may not have been upending we may not have been upending you may not have been upending they may not have been upending

Interrogative form

Simple form	V-ing form
may I upend? may you upend? may he upend? may we upend? may you upend? may they upend?	may I be upending? may you be upending? may he be upending? may we be upending? may you be upending? may they be upending?
Perfect	V-ing perfect
may I have upended? may you have upended? may he have upended? may we have upended? may you have upended? may they have upended?	may I have been upending? may you have been upending? may he have been upending? may we have been upending? may you have been upending? may they have been upending?

Interro-negative form

Simple form	V-ing form
may I not upend? may you not upend? may he not upend? may we not upend? may you not upend? may they not upend?	may I not be upending? may you not be upending? may he not be upending? may we not be upending? may you not be upending? may they not be upending?
Perfect	V-ing perfect
may I not have upended? may you not have upended? may he not have upended? may we not have upended? may you not have upended? may they not have upended?	may I not have been upending? may you not have been upending? may he not have been upending? may we not have been upending? may you not have been upending? may they not have been upending?