<p>Here is an odd; yet simple question. It has to do with proper pronounciation. Ive noticed taht the rrrrra sound in various uses is supposed to be a trilled r; or, a Spanish r. I can't trill my r's at all. My toungue doesn't seem to cooperate. Has anyone else had this trouble and over come it? My main concern is; do the r's absolutely HAVE To be trilled r's to work correctly? Any native Spanish speakers might be able to help me in this situation. </p>