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