I can canoe you can canoe he can canoe we can canoe you can canoe they can canoe
V-ing form
I can be canoing you can be canoing he can be canoing we can be canoing you can be canoing they can be canoing
Perfect
I can have canoed you can have canoed he can have canoed we can have canoed you can have canoed they can have canoed
V-ing perfect
I can have been canoing you can have been canoing he can have been canoing we can have been canoing you can have been canoing they can have been canoing
Negation
Simple form
I can't canoe you can't canoe he can't canoe we can't canoe you can't canoe they can't canoe
V-ing form
I can't be canoing you can't be canoing he can't be canoing we can't be canoing you can't be canoing they can't be canoing
Perfect
I can't have canoed you can't have canoed he can't have canoed we can't have canoed you can't have canoed they can't have canoed
V-ing perfect
I can't have been canoing you can't have been canoing he can't have been canoing we can't have been canoing you can't have been canoing they can't have been canoing
Interrogative form
Simple form
can I canoe? can you canoe? can he canoe? can we canoe? can you canoe? can they canoe?
V-ing form
can I be canoing? can you be canoing? can he be canoing? can we be canoing? can you be canoing? can they be canoing?
Perfect
can I have canoed? can you have canoed? can he have canoed? can we have canoed? can you have canoed? can they have canoed?
V-ing perfect
can I have been canoing? can you have been canoing? can he have been canoing? can we have been canoing? can you have been canoing? can they have been canoing?
Interro-negative form
Simple form
can't I canoe? can't you canoe? can't he canoe? can't we canoe? can't you canoe? can't they canoe?
V-ing form
can't I be canoing? can't you be canoing? can't he be canoing? can't we be canoing? can't you be canoing? can't they be canoing?
Perfect
can't I have canoed? can't you have canoed? can't he have canoed? can't we have canoed? can't you have canoed? can't they have canoed?
V-ing perfect
can't I have been canoing? can't you have been canoing? can't he have been canoing? can't we have been canoing? can't you have been canoing? can't they have been canoing?