I can lather you can lather she can lather we can lather you can lather they can lather
V-ing form
I can be lathering you can be lathering she can be lathering we can be lathering you can be lathering they can be lathering
Perfect
I can have lathered you can have lathered she can have lathered we can have lathered you can have lathered they can have lathered
V-ing perfect
I can have been lathering you can have been lathering she can have been lathering we can have been lathering you can have been lathering they can have been lathering
Negation
Simple form
I can't lather you can't lather she can't lather we can't lather you can't lather they can't lather
V-ing form
I can't be lathering you can't be lathering she can't be lathering we can't be lathering you can't be lathering they can't be lathering
Perfect
I can't have lathered you can't have lathered she can't have lathered we can't have lathered you can't have lathered they can't have lathered
V-ing perfect
I can't have been lathering you can't have been lathering she can't have been lathering we can't have been lathering you can't have been lathering they can't have been lathering
Interrogative form
Simple form
can I lather? can you lather? can she lather? can we lather? can you lather? can they lather?
V-ing form
can I be lathering? can you be lathering? can she be lathering? can we be lathering? can you be lathering? can they be lathering?
Perfect
can I have lathered? can you have lathered? can she have lathered? can we have lathered? can you have lathered? can they have lathered?
V-ing perfect
can I have been lathering? can you have been lathering? can she have been lathering? can we have been lathering? can you have been lathering? can they have been lathering?
Interro-negative form
Simple form
can't I lather? can't you lather? can't she lather? can't we lather? can't you lather? can't they lather?
V-ing form
can't I be lathering? can't you be lathering? can't she be lathering? can't we be lathering? can't you be lathering? can't they be lathering?
Perfect
can't I have lathered? can't you have lathered? can't she have lathered? can't we have lathered? can't you have lathered? can't they have lathered?
V-ing perfect
can't I have been lathering? can't you have been lathering? can't she have been lathering? can't we have been lathering? can't you have been lathering? can't they have been lathering?