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