Can you explain to me why:
1 He offered me a book to read. - correct grammar
2 He offered me a spanner to fix the pipe. - correct grammar
3 He offered me a book to buy. - wrong grammar (the meaning intended is - He suggested that I buy a book.)
They have the same structure. What's the matter?
The object of the verb "offer" must be the thing offered. In the third sentence you are offered the "opportunity to buy a book". That's the meaning you want to capture in "a book to buy". It doesn't work because you are not actually being offered a book.
It's a wrong use of the verb to offer.
He gave/lent me a book.
He handed me a spanner.
In (3), in your intended meaning, the speaker is offering the suggestion that you buy a book, not the book itself.
