I can bicycle you can bicycle he can bicycle we can bicycle you can bicycle they can bicycle
V-ing form
I can be bicycling you can be bicycling he can be bicycling we can be bicycling you can be bicycling they can be bicycling
Perfect
I can have bicycled you can have bicycled he can have bicycled we can have bicycled you can have bicycled they can have bicycled
V-ing perfect
I can have been bicycling you can have been bicycling he can have been bicycling we can have been bicycling you can have been bicycling they can have been bicycling
Negation
Simple form
I can't bicycle you can't bicycle he can't bicycle we can't bicycle you can't bicycle they can't bicycle
V-ing form
I can't be bicycling you can't be bicycling he can't be bicycling we can't be bicycling you can't be bicycling they can't be bicycling
Perfect
I can't have bicycled you can't have bicycled he can't have bicycled we can't have bicycled you can't have bicycled they can't have bicycled
V-ing perfect
I can't have been bicycling you can't have been bicycling he can't have been bicycling we can't have been bicycling you can't have been bicycling they can't have been bicycling
Interrogative form
Simple form
can I bicycle? can you bicycle? can he bicycle? can we bicycle? can you bicycle? can they bicycle?
V-ing form
can I be bicycling? can you be bicycling? can he be bicycling? can we be bicycling? can you be bicycling? can they be bicycling?
Perfect
can I have bicycled? can you have bicycled? can he have bicycled? can we have bicycled? can you have bicycled? can they have bicycled?
V-ing perfect
can I have been bicycling? can you have been bicycling? can he have been bicycling? can we have been bicycling? can you have been bicycling? can they have been bicycling?
Interro-negative form
Simple form
can't I bicycle? can't you bicycle? can't he bicycle? can't we bicycle? can't you bicycle? can't they bicycle?
V-ing form
can't I be bicycling? can't you be bicycling? can't he be bicycling? can't we be bicycling? can't you be bicycling? can't they be bicycling?
Perfect
can't I have bicycled? can't you have bicycled? can't he have bicycled? can't we have bicycled? can't you have bicycled? can't they have bicycled?
V-ing perfect
can't I have been bicycling? can't you have been bicycling? can't he have been bicycling? can't we have been bicycling? can't you have been bicycling? can't they have been bicycling?