Raen“
This is a tricky matter to handle. Or,
This is a tricky matter to be handled.
”
The first. The person who will be handling the matter is omitted from the non-finite
for ... to ... clause. Thus, the "full form" is:
This is a tricky matter for [someone / a person / anyone] to handle (*it).
Likewise,
It's an awful thing to say. >> It's an awful thing for someone to say (*it).
That's a difficult song to sing. >> That's a difficult song for someone to sing (*it).
That's a good book to read. >> That's a good book for someone to read (*it).
With a personal subject:
Ellen was looking for a new recipe to try. >> Ellen was looking for a new recipe (*for Ellen herself to try (*it)).
Jake wanted a warmer coat to wear in cold weather. >> Jake wanted a warmer coat (*for Jake himself to wear (*it) in cold weather.)
Fran needed an interesting magazine to take on the plane. >> Fran needed an interesting magazine (*for Fran herself to take (*it) on the plane).
If the subject of the for ... to ... clause is not the same as the subject of the sentence, it must be specified explicitly:
Ellen was looking for a new recipe for her sister to try.
Jake wanted a warmer coat for his mother to wear in cold weather.
Fran needed an interesting magazine for the children to take on the plane.
Implied person in certain constructions:
(Handing money to someone) Here's some money to spend. >> Here's some money for you to spend (*it).
CJ