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