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