Have something to give someone or give TO someone
Solution 1:
With ditransitive verbs (verbs taking a direct and an indirect object), when both objects follow the verb we can say:
- I give you the book.
OR
- I give the book to you.
When the direct object precedes the verb (that is, in relative clauses) the indirect object may or may not take to:
- This is the book I want to give you.
OR
-
This is the book I want to give to you.
-
Here's the picture I need to show you.
OR
-
Here's the picture I need to show to you.
-
This is the letter I have written you.
OR
- This is the letter I have written to you.
The versions without "to" can sound more idiomatic.