import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class NotLookahead {

    public static void main(String[] args) {
        String regex = "Tim (?!Bueneman)[A-Z]\\w+";

        Pattern p = Pattern.compile(regex);

        String text = "I can confirm what Tim Bueneman analyst " +
                "Tim Right is saying — that Amazon.com plans " +
                " a larger-screen model of its e-book player" +
                "Tim Singh aimed at students, in the coming " +
                "Tim Khan also hearing some details about an " +
                " the base model Tim Yadav told is coming in " +
                "though Tim Sharma thinks it may be in October";

        Matcher m = p.matcher(text);
        String s = null;
        while (m.find()) {
            s = m.group();
            System.out.println(s);
        }
    }
}