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