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 may not cloud you may not cloud he may not cloud we may not cloud you may not cloud they may not cloud
V-ing form
I may not be clouding you may not be clouding he may not be clouding we may not be clouding you may not be clouding they may not be clouding
Perfect
I may not have clouded you may not have clouded he may not have clouded we may not have clouded you may not have clouded they may not have clouded
V-ing perfect
I may not have been clouding you may not have been clouding he may not have been clouding we may not have been clouding you may not have been clouding they may not 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
may I not cloud? may you not cloud? may he not cloud? may we not cloud? may you not cloud? may they not cloud?
V-ing form
may I not be clouding? may you not be clouding? may he not be clouding? may we not be clouding? may you not be clouding? may they not be clouding?
Perfect
may I not have clouded? may you not have clouded? may he not have clouded? may we not have clouded? may you not have clouded? may they not have clouded?
V-ing perfect
may I not have been clouding? may you not have been clouding? may he not have been clouding? may we not have been clouding? may you not have been clouding? may they not have been clouding?