English verb conjugation
MAY EXTEND

Regular verb: extend - extended - extended

Affirmation

Simple form	V-ing form
I may extend you may extend he may extend we may extend you may extend they may extend	I may be extending you may be extending he may be extending we may be extending you may be extending they may be extending
Perfect	V-ing perfect
I may have extended you may have extended he may have extended we may have extended you may have extended they may have extended	I may have been extending you may have been extending he may have been extending we may have been extending you may have been extending they may have been extending

Negation

Simple form	V-ing form
I may not extend you may not extend he may not extend we may not extend you may not extend they may not extend	I may not be extending you may not be extending he may not be extending we may not be extending you may not be extending they may not be extending
Perfect	V-ing perfect
I may not have extended you may not have extended he may not have extended we may not have extended you may not have extended they may not have extended	I may not have been extending you may not have been extending he may not have been extending we may not have been extending you may not have been extending they may not have been extending

Interrogative form

Simple form	V-ing form
may I extend? may you extend? may he extend? may we extend? may you extend? may they extend?	may I be extending? may you be extending? may he be extending? may we be extending? may you be extending? may they be extending?
Perfect	V-ing perfect
may I have extended? may you have extended? may he have extended? may we have extended? may you have extended? may they have extended?	may I have been extending? may you have been extending? may he have been extending? may we have been extending? may you have been extending? may they have been extending?

Interro-negative form

Simple form	V-ing form
may I not extend? may you not extend? may he not extend? may we not extend? may you not extend? may they not extend?	may I not be extending? may you not be extending? may he not be extending? may we not be extending? may you not be extending? may they not be extending?
Perfect	V-ing perfect
may I not have extended? may you not have extended? may he not have extended? may we not have extended? may you not have extended? may they not have extended?	may I not have been extending? may you not have been extending? may he not have been extending? may we not have been extending? may you not have been extending? may they not have been extending?