Regex help

Hi friends, 

I need some help regarding regex. I have a long string which contains words like this "I am (peter) smith I (want) to make a (regex)"

Now from this string I want to extract all those words which are in this format (..) i.e I need the output to be (peter),(want),(regex)

Thanks,

Peter

#region Using Directives

using System;
using System.Text.RegularExpressions;

#endregion

public class Example
{
    static void Main()
    {
        var regex = new Regex(@"(\(.*?\))",
                              RegexOptions.Singleline | RegexOptions.IgnoreCase);

        const string input = "I am (peter) smith I (want) to make a (regex)";
        var matches = regex.Matches(input);
        foreach (var match in matches)
        {
            Console.WriteLine(match.ToString());
        }
        Console.ReadLine();
    }
}

Output:

(peter)

(want)

(regex)