Yes, most definitely, sometimes even more so because it means you had a strong reaction to the book. Just make sure your negative reaction is rational, not emotional. For example, you shouldn't do a negative review because you're feeling down, or because the author's view is something you choose not to live by. But it can be that you found the writing really bad, or that the though process wasn't well established. Remember, you must be critical, but rationally, objectively.