English verb conjugation
MAY HARKEN

Regular verb: harken - harkened - harkened

Affirmation

Simple form	V-ing form
I may harken you may harken he may harken we may harken you may harken they may harken	I may be harkening you may be harkening he may be harkening we may be harkening you may be harkening they may be harkening
Perfect	V-ing perfect
I may have harkened you may have harkened he may have harkened we may have harkened you may have harkened they may have harkened	I may have been harkening you may have been harkening he may have been harkening we may have been harkening you may have been harkening they may have been harkening

Negation

Simple form	V-ing form
I may not harken you may not harken he may not harken we may not harken you may not harken they may not harken	I may not be harkening you may not be harkening he may not be harkening we may not be harkening you may not be harkening they may not be harkening
Perfect	V-ing perfect
I may not have harkened you may not have harkened he may not have harkened we may not have harkened you may not have harkened they may not have harkened	I may not have been harkening you may not have been harkening he may not have been harkening we may not have been harkening you may not have been harkening they may not have been harkening

Interrogative form

Simple form	V-ing form
may I harken? may you harken? may he harken? may we harken? may you harken? may they harken?	may I be harkening? may you be harkening? may he be harkening? may we be harkening? may you be harkening? may they be harkening?
Perfect	V-ing perfect
may I have harkened? may you have harkened? may he have harkened? may we have harkened? may you have harkened? may they have harkened?	may I have been harkening? may you have been harkening? may he have been harkening? may we have been harkening? may you have been harkening? may they have been harkening?

Interro-negative form

Simple form	V-ing form
may I not harken? may you not harken? may he not harken? may we not harken? may you not harken? may they not harken?	may I not be harkening? may you not be harkening? may he not be harkening? may we not be harkening? may you not be harkening? may they not be harkening?
Perfect	V-ing perfect
may I not have harkened? may you not have harkened? may he not have harkened? may we not have harkened? may you not have harkened? may they not have harkened?	may I not have been harkening? may you not have been harkening? may he not have been harkening? may we not have been harkening? may you not have been harkening? may they not have been harkening?