I can befuddle you can befuddle he can befuddle we can befuddle you can befuddle they can befuddle
V-ing form
I can be befuddling you can be befuddling he can be befuddling we can be befuddling you can be befuddling they can be befuddling
Perfect
I can have befuddled you can have befuddled he can have befuddled we can have befuddled you can have befuddled they can have befuddled
V-ing perfect
I can have been befuddling you can have been befuddling he can have been befuddling we can have been befuddling you can have been befuddling they can have been befuddling
Negation
Simple form
I can't befuddle you can't befuddle he can't befuddle we can't befuddle you can't befuddle they can't befuddle
V-ing form
I can't be befuddling you can't be befuddling he can't be befuddling we can't be befuddling you can't be befuddling they can't be befuddling
Perfect
I can't have befuddled you can't have befuddled he can't have befuddled we can't have befuddled you can't have befuddled they can't have befuddled
V-ing perfect
I can't have been befuddling you can't have been befuddling he can't have been befuddling we can't have been befuddling you can't have been befuddling they can't have been befuddling
Interrogative form
Simple form
can I befuddle? can you befuddle? can he befuddle? can we befuddle? can you befuddle? can they befuddle?
V-ing form
can I be befuddling? can you be befuddling? can he be befuddling? can we be befuddling? can you be befuddling? can they be befuddling?
Perfect
can I have befuddled? can you have befuddled? can he have befuddled? can we have befuddled? can you have befuddled? can they have befuddled?
V-ing perfect
can I have been befuddling? can you have been befuddling? can he have been befuddling? can we have been befuddling? can you have been befuddling? can they have been befuddling?
Interro-negative form
Simple form
can't I befuddle? can't you befuddle? can't he befuddle? can't we befuddle? can't you befuddle? can't they befuddle?
V-ing form
can't I be befuddling? can't you be befuddling? can't he be befuddling? can't we be befuddling? can't you be befuddling? can't they be befuddling?
Perfect
can't I have befuddled? can't you have befuddled? can't he have befuddled? can't we have befuddled? can't you have befuddled? can't they have befuddled?
V-ing perfect
can't I have been befuddling? can't you have been befuddling? can't he have been befuddling? can't we have been befuddling? can't you have been befuddling? can't they have been befuddling?