I may winterkill you may winterkill he may winterkill we may winterkill you may winterkill they may winterkill
V-ing form
I may be winterkilling you may be winterkilling he may be winterkilling we may be winterkilling you may be winterkilling they may be winterkilling
Perfect
I may have winterkilled you may have winterkilled he may have winterkilled we may have winterkilled you may have winterkilled they may have winterkilled
V-ing perfect
I may have been winterkilling you may have been winterkilling he may have been winterkilling we may have been winterkilling you may have been winterkilling they may have been winterkilling
Negation
Simple form
I may not winterkill you may not winterkill he may not winterkill we may not winterkill you may not winterkill they may not winterkill
V-ing form
I may not be winterkilling you may not be winterkilling he may not be winterkilling we may not be winterkilling you may not be winterkilling they may not be winterkilling
Perfect
I may not have winterkilled you may not have winterkilled he may not have winterkilled we may not have winterkilled you may not have winterkilled they may not have winterkilled
V-ing perfect
I may not have been winterkilling you may not have been winterkilling he may not have been winterkilling we may not have been winterkilling you may not have been winterkilling they may not have been winterkilling
Interrogative form
Simple form
may I winterkill? may you winterkill? may he winterkill? may we winterkill? may you winterkill? may they winterkill?
V-ing form
may I be winterkilling? may you be winterkilling? may he be winterkilling? may we be winterkilling? may you be winterkilling? may they be winterkilling?
Perfect
may I have winterkilled? may you have winterkilled? may he have winterkilled? may we have winterkilled? may you have winterkilled? may they have winterkilled?
V-ing perfect
may I have been winterkilling? may you have been winterkilling? may he have been winterkilling? may we have been winterkilling? may you have been winterkilling? may they have been winterkilling?
Interro-negative form
Simple form
may I not winterkill? may you not winterkill? may he not winterkill? may we not winterkill? may you not winterkill? may they not winterkill?
V-ing form
may I not be winterkilling? may you not be winterkilling? may he not be winterkilling? may we not be winterkilling? may you not be winterkilling? may they not be winterkilling?
Perfect
may I not have winterkilled? may you not have winterkilled? may he not have winterkilled? may we not have winterkilled? may you not have winterkilled? may they not have winterkilled?
V-ing perfect
may I not have been winterkilling? may you not have been winterkilling? may he not have been winterkilling? may we not have been winterkilling? may you not have been winterkilling? may they not have been winterkilling?