I can avail you can avail she can avail we can avail you can avail they can avail
V-ing form
I can be availing you can be availing she can be availing we can be availing you can be availing they can be availing
Perfect
I can have availed you can have availed she can have availed we can have availed you can have availed they can have availed
V-ing perfect
I can have been availing you can have been availing she can have been availing we can have been availing you can have been availing they can have been availing
Negation
Simple form
I can't avail you can't avail she can't avail we can't avail you can't avail they can't avail
V-ing form
I can't be availing you can't be availing she can't be availing we can't be availing you can't be availing they can't be availing
Perfect
I can't have availed you can't have availed she can't have availed we can't have availed you can't have availed they can't have availed
V-ing perfect
I can't have been availing you can't have been availing she can't have been availing we can't have been availing you can't have been availing they can't have been availing
Interrogative form
Simple form
can I avail? can you avail? can she avail? can we avail? can you avail? can they avail?
V-ing form
can I be availing? can you be availing? can she be availing? can we be availing? can you be availing? can they be availing?
Perfect
can I have availed? can you have availed? can she have availed? can we have availed? can you have availed? can they have availed?
V-ing perfect
can I have been availing? can you have been availing? can she have been availing? can we have been availing? can you have been availing? can they have been availing?
Interro-negative form
Simple form
can't I avail? can't you avail? can't she avail? can't we avail? can't you avail? can't they avail?
V-ing form
can't I be availing? can't you be availing? can't she be availing? can't we be availing? can't you be availing? can't they be availing?
Perfect
can't I have availed? can't you have availed? can't she have availed? can't we have availed? can't you have availed? can't they have availed?
V-ing perfect
can't I have been availing? can't you have been availing? can't she have been availing? can't we have been availing? can't you have been availing? can't they have been availing?