I may hammer you may hammer he may hammer we may hammer you may hammer they may hammer
V-ing form
I may be hammering you may be hammering he may be hammering we may be hammering you may be hammering they may be hammering
Perfect
I may have hammered you may have hammered he may have hammered we may have hammered you may have hammered they may have hammered
V-ing perfect
I may have been hammering you may have been hammering he may have been hammering we may have been hammering you may have been hammering they may have been hammering
Negation
Simple form
I may not hammer you may not hammer he may not hammer we may not hammer you may not hammer they may not hammer
V-ing form
I may not be hammering you may not be hammering he may not be hammering we may not be hammering you may not be hammering they may not be hammering
Perfect
I may not have hammered you may not have hammered he may not have hammered we may not have hammered you may not have hammered they may not have hammered
V-ing perfect
I may not have been hammering you may not have been hammering he may not have been hammering we may not have been hammering you may not have been hammering they may not have been hammering
Interrogative form
Simple form
may I hammer? may you hammer? may he hammer? may we hammer? may you hammer? may they hammer?
V-ing form
may I be hammering? may you be hammering? may he be hammering? may we be hammering? may you be hammering? may they be hammering?
Perfect
may I have hammered? may you have hammered? may he have hammered? may we have hammered? may you have hammered? may they have hammered?
V-ing perfect
may I have been hammering? may you have been hammering? may he have been hammering? may we have been hammering? may you have been hammering? may they have been hammering?
Interro-negative form
Simple form
may I not hammer? may you not hammer? may he not hammer? may we not hammer? may you not hammer? may they not hammer?
V-ing form
may I not be hammering? may you not be hammering? may he not be hammering? may we not be hammering? may you not be hammering? may they not be hammering?
Perfect
may I not have hammered? may you not have hammered? may he not have hammered? may we not have hammered? may you not have hammered? may they not have hammered?
V-ing perfect
may I not have been hammering? may you not have been hammering? may he not have been hammering? may we not have been hammering? may you not have been hammering? may they not have been hammering?