I can bicycle you can bicycle she can bicycle we can bicycle you can bicycle they can bicycle
V-ing form
I can be bicycling you can be bicycling she can be bicycling we can be bicycling you can be bicycling they can be bicycling
Perfect
I can have bicycled you can have bicycled she 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 she 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 she 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 she 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 she 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 she 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 she bicycle? can we bicycle? can you bicycle? can they bicycle?
V-ing form
can I be bicycling? can you be bicycling? can she be bicycling? can we be bicycling? can you be bicycling? can they be bicycling?
Perfect
can I have bicycled? can you have bicycled? can she 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 she 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 she 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 she 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 she 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 she have been bicycling? can't we have been bicycling? can't you have been bicycling? can't they have been bicycling?