I may harshen you may harshen he may harshen we may harshen you may harshen they may harshen
V-ing form
I may be harshening you may be harshening he may be harshening we may be harshening you may be harshening they may be harshening
Perfect
I may have harshened you may have harshened he may have harshened we may have harshened you may have harshened they may have harshened
V-ing perfect
I may have been harshening you may have been harshening he may have been harshening we may have been harshening you may have been harshening they may have been harshening
Negation
Simple form
I may not harshen you may not harshen he may not harshen we may not harshen you may not harshen they may not harshen
V-ing form
I may not be harshening you may not be harshening he may not be harshening we may not be harshening you may not be harshening they may not be harshening
Perfect
I may not have harshened you may not have harshened he may not have harshened we may not have harshened you may not have harshened they may not have harshened
V-ing perfect
I may not have been harshening you may not have been harshening he may not have been harshening we may not have been harshening you may not have been harshening they may not have been harshening
Interrogative form
Simple form
may I harshen? may you harshen? may he harshen? may we harshen? may you harshen? may they harshen?
V-ing form
may I be harshening? may you be harshening? may he be harshening? may we be harshening? may you be harshening? may they be harshening?
Perfect
may I have harshened? may you have harshened? may he have harshened? may we have harshened? may you have harshened? may they have harshened?
V-ing perfect
may I have been harshening? may you have been harshening? may he have been harshening? may we have been harshening? may you have been harshening? may they have been harshening?
Interro-negative form
Simple form
may I not harshen? may you not harshen? may he not harshen? may we not harshen? may you not harshen? may they not harshen?
V-ing form
may I not be harshening? may you not be harshening? may he not be harshening? may we not be harshening? may you not be harshening? may they not be harshening?
Perfect
may I not have harshened? may you not have harshened? may he not have harshened? may we not have harshened? may you not have harshened? may they not have harshened?
V-ing perfect
may I not have been harshening? may you not have been harshening? may he not have been harshening? may we not have been harshening? may you not have been harshening? may they not have been harshening?