English verb conjugation
MAY OVERESTIMATE

Regular verb: overestimate - overestimated - overestimated

Affirmation

Simple form	V-ing form
I may overestimate you may overestimate he may overestimate we may overestimate you may overestimate they may overestimate	I may be overestimating you may be overestimating he may be overestimating we may be overestimating you may be overestimating they may be overestimating
Perfect	V-ing perfect
I may have overestimated you may have overestimated he may have overestimated we may have overestimated you may have overestimated they may have overestimated	I may have been overestimating you may have been overestimating he may have been overestimating we may have been overestimating you may have been overestimating they may have been overestimating

Negation

Simple form	V-ing form
I may not overestimate you may not overestimate he may not overestimate we may not overestimate you may not overestimate they may not overestimate	I may not be overestimating you may not be overestimating he may not be overestimating we may not be overestimating you may not be overestimating they may not be overestimating
Perfect	V-ing perfect
I may not have overestimated you may not have overestimated he may not have overestimated we may not have overestimated you may not have overestimated they may not have overestimated	I may not have been overestimating you may not have been overestimating he may not have been overestimating we may not have been overestimating you may not have been overestimating they may not have been overestimating

Interrogative form

Simple form	V-ing form
may I overestimate? may you overestimate? may he overestimate? may we overestimate? may you overestimate? may they overestimate?	may I be overestimating? may you be overestimating? may he be overestimating? may we be overestimating? may you be overestimating? may they be overestimating?
Perfect	V-ing perfect
may I have overestimated? may you have overestimated? may he have overestimated? may we have overestimated? may you have overestimated? may they have overestimated?	may I have been overestimating? may you have been overestimating? may he have been overestimating? may we have been overestimating? may you have been overestimating? may they have been overestimating?

Interro-negative form

Simple form	V-ing form
may I not overestimate? may you not overestimate? may he not overestimate? may we not overestimate? may you not overestimate? may they not overestimate?	may I not be overestimating? may you not be overestimating? may he not be overestimating? may we not be overestimating? may you not be overestimating? may they not be overestimating?
Perfect	V-ing perfect
may I not have overestimated? may you not have overestimated? may he not have overestimated? may we not have overestimated? may you not have overestimated? may they not have overestimated?	may I not have been overestimating? may you not have been overestimating? may he not have been overestimating? may we not have been overestimating? may you not have been overestimating? may they not have been overestimating?