I may ebb you may ebb he may ebb we may ebb you may ebb they may ebb
V-ing form
I may be ebbing you may be ebbing he may be ebbing we may be ebbing you may be ebbing they may be ebbing
Perfect
I may have ebbed you may have ebbed he may have ebbed we may have ebbed you may have ebbed they may have ebbed
V-ing perfect
I may have been ebbing you may have been ebbing he may have been ebbing we may have been ebbing you may have been ebbing they may have been ebbing
Negation
Simple form
I mayn't ebb you mayn't ebb he mayn't ebb we mayn't ebb you mayn't ebb they mayn't ebb
V-ing form
I mayn't be ebbing you mayn't be ebbing he mayn't be ebbing we mayn't be ebbing you mayn't be ebbing they mayn't be ebbing
Perfect
I mayn't have ebbed you mayn't have ebbed he mayn't have ebbed we mayn't have ebbed you mayn't have ebbed they mayn't have ebbed
V-ing perfect
I mayn't have been ebbing you mayn't have been ebbing he mayn't have been ebbing we mayn't have been ebbing you mayn't have been ebbing they mayn't have been ebbing
Interrogative form
Simple form
may I ebb? may you ebb? may he ebb? may we ebb? may you ebb? may they ebb?
V-ing form
may I be ebbing? may you be ebbing? may he be ebbing? may we be ebbing? may you be ebbing? may they be ebbing?
Perfect
may I have ebbed? may you have ebbed? may he have ebbed? may we have ebbed? may you have ebbed? may they have ebbed?
V-ing perfect
may I have been ebbing? may you have been ebbing? may he have been ebbing? may we have been ebbing? may you have been ebbing? may they have been ebbing?
Interro-negative form
Simple form
mayn't I ebb? mayn't you ebb? mayn't he ebb? mayn't we ebb? mayn't you ebb? mayn't they ebb?
V-ing form
mayn't I be ebbing? mayn't you be ebbing? mayn't he be ebbing? mayn't we be ebbing? mayn't you be ebbing? mayn't they be ebbing?
Perfect
mayn't I have ebbed? mayn't you have ebbed? mayn't he have ebbed? mayn't we have ebbed? mayn't you have ebbed? mayn't they have ebbed?
V-ing perfect
mayn't I have been ebbing? mayn't you have been ebbing? mayn't he have been ebbing? mayn't we have been ebbing? mayn't you have been ebbing? mayn't they have been ebbing?