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