I may hammer you may hammer she may hammer we may hammer you may hammer they may hammer
V-ing form
I may be hammering you may be hammering she may be hammering we may be hammering you may be hammering they may be hammering
Perfect
I may have hammered you may have hammered she 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 she may have been hammering we may have been hammering you may have been hammering they may have been hammering
Negation
Simple form
I mayn't hammer you mayn't hammer she mayn't hammer we mayn't hammer you mayn't hammer they mayn't hammer
V-ing form
I mayn't be hammering you mayn't be hammering she mayn't be hammering we mayn't be hammering you mayn't be hammering they mayn't be hammering
Perfect
I mayn't have hammered you mayn't have hammered she mayn't have hammered we mayn't have hammered you mayn't have hammered they mayn't have hammered
V-ing perfect
I mayn't have been hammering you mayn't have been hammering she mayn't have been hammering we mayn't have been hammering you mayn't have been hammering they mayn't have been hammering
Interrogative form
Simple form
may I hammer? may you hammer? may she hammer? may we hammer? may you hammer? may they hammer?
V-ing form
may I be hammering? may you be hammering? may she be hammering? may we be hammering? may you be hammering? may they be hammering?
Perfect
may I have hammered? may you have hammered? may she 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 she have been hammering? may we have been hammering? may you have been hammering? may they have been hammering?
Interro-negative form
Simple form
mayn't I hammer? mayn't you hammer? mayn't she hammer? mayn't we hammer? mayn't you hammer? mayn't they hammer?
V-ing form
mayn't I be hammering? mayn't you be hammering? mayn't she be hammering? mayn't we be hammering? mayn't you be hammering? mayn't they be hammering?
Perfect
mayn't I have hammered? mayn't you have hammered? mayn't she have hammered? mayn't we have hammered? mayn't you have hammered? mayn't they have hammered?
V-ing perfect
mayn't I have been hammering? mayn't you have been hammering? mayn't she have been hammering? mayn't we have been hammering? mayn't you have been hammering? mayn't they have been hammering?