Orson
That is interesting. I dont go by dictionaries but by what sounds right. To me a train cannot de-rail, it is de-railed by something, so "was de-railed" and "has been de-railed" are correct. I suppose if Chambers says it is Ok, I cannot complain, but I dont like it.
Malone
I am delighted to see from another thread that you are back, and I am very pleased to see you, although we disagree on this point.