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