check sql syntax

How do i check if a sql-string has corect syntax.

With select-statements you can just use a Datareader, since no data is changed in the database, but i'm working with other
statements as well, and need to just verify that the syntax of the string is correct, and determine if it is a select, update,
insert or delete statement.

I've looked but can't seem to find a class that does this.