Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may speak. talk you may speak. talk he may speak. talk we may speak. talk you may speak. talk they may speak. talk
V-ing form
I may be speak. talking you may be speak. talking he may be speak. talking we may be speak. talking you may be speak. talking they may be speak. talking
Perfect
I may have speak. talked you may have speak. talked he may have speak. talked we may have speak. talked you may have speak. talked they may have speak. talked
V-ing perfect
I may have been speak. talking you may have been speak. talking he may have been speak. talking we may have been speak. talking you may have been speak. talking they may have been speak. talking
Negation
Simple form
I mayn't speak. talk you mayn't speak. talk he mayn't speak. talk we mayn't speak. talk you mayn't speak. talk they mayn't speak. talk
V-ing form
I mayn't be speak. talking you mayn't be speak. talking he mayn't be speak. talking we mayn't be speak. talking you mayn't be speak. talking they mayn't be speak. talking
Perfect
I mayn't have speak. talked you mayn't have speak. talked he mayn't have speak. talked we mayn't have speak. talked you mayn't have speak. talked they mayn't have speak. talked
V-ing perfect
I mayn't have been speak. talking you mayn't have been speak. talking he mayn't have been speak. talking we mayn't have been speak. talking you mayn't have been speak. talking they mayn't have been speak. talking
Interrogative form
Simple form
may I speak. talk? may you speak. talk? may he speak. talk? may we speak. talk? may you speak. talk? may they speak. talk?
V-ing form
may I be speak. talking? may you be speak. talking? may he be speak. talking? may we be speak. talking? may you be speak. talking? may they be speak. talking?
Perfect
may I have speak. talked? may you have speak. talked? may he have speak. talked? may we have speak. talked? may you have speak. talked? may they have speak. talked?
V-ing perfect
may I have been speak. talking? may you have been speak. talking? may he have been speak. talking? may we have been speak. talking? may you have been speak. talking? may they have been speak. talking?
Interro-negative form
Simple form
mayn't I speak. talk? mayn't you speak. talk? mayn't he speak. talk? mayn't we speak. talk? mayn't you speak. talk? mayn't they speak. talk?
V-ing form
mayn't I be speak. talking? mayn't you be speak. talking? mayn't he be speak. talking? mayn't we be speak. talking? mayn't you be speak. talking? mayn't they be speak. talking?
Perfect
mayn't I have speak. talked? mayn't you have speak. talked? mayn't he have speak. talked? mayn't we have speak. talked? mayn't you have speak. talked? mayn't they have speak. talked?
V-ing perfect
mayn't I have been speak. talking? mayn't you have been speak. talking? mayn't he have been speak. talking? mayn't we have been speak. talking? mayn't you have been speak. talking? mayn't they have been speak. talking?