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