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