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