I can hang-glide you can hang-glide she can hang-glide we can hang-glide you can hang-glide they can hang-glide
V-ing form
I can be hang-gliding you can be hang-gliding she can be hang-gliding we can be hang-gliding you can be hang-gliding they can be hang-gliding
Perfect
I can have hang-glided you can have hang-glided she can have hang-glided we can have hang-glided you can have hang-glided they can have hang-glided
V-ing perfect
I can have been hang-gliding you can have been hang-gliding she can have been hang-gliding we can have been hang-gliding you can have been hang-gliding they can have been hang-gliding
Negation
Simple form
I cannot hang-glide you cannot hang-glide she cannot hang-glide we cannot hang-glide you cannot hang-glide they cannot hang-glide
V-ing form
I cannot be hang-gliding you cannot be hang-gliding she cannot be hang-gliding we cannot be hang-gliding you cannot be hang-gliding they cannot be hang-gliding
Perfect
I cannot have hang-glided you cannot have hang-glided she cannot have hang-glided we cannot have hang-glided you cannot have hang-glided they cannot have hang-glided
V-ing perfect
I cannot have been hang-gliding you cannot have been hang-gliding she cannot have been hang-gliding we cannot have been hang-gliding you cannot have been hang-gliding they cannot have been hang-gliding
Interrogative form
Simple form
can I hang-glide? can you hang-glide? can she hang-glide? can we hang-glide? can you hang-glide? can they hang-glide?
V-ing form
can I be hang-gliding? can you be hang-gliding? can she be hang-gliding? can we be hang-gliding? can you be hang-gliding? can they be hang-gliding?
Perfect
can I have hang-glided? can you have hang-glided? can she have hang-glided? can we have hang-glided? can you have hang-glided? can they have hang-glided?
V-ing perfect
can I have been hang-gliding? can you have been hang-gliding? can she have been hang-gliding? can we have been hang-gliding? can you have been hang-gliding? can they have been hang-gliding?
Interro-negative form
Simple form
can I not hang-glide? can you not hang-glide? can she not hang-glide? can we not hang-glide? can you not hang-glide? can they not hang-glide?
V-ing form
can I not be hang-gliding? can you not be hang-gliding? can she not be hang-gliding? can we not be hang-gliding? can you not be hang-gliding? can they not be hang-gliding?
Perfect
can I not have hang-glided? can you not have hang-glided? can she not have hang-glided? can we not have hang-glided? can you not have hang-glided? can they not have hang-glided?
V-ing perfect
can I not have been hang-gliding? can you not have been hang-gliding? can she not have been hang-gliding? can we not have been hang-gliding? can you not have been hang-gliding? can they not have been hang-gliding?