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