Do you mean you have discovered stutterers have deficiencies of using decent grammars when speaking? This is not stuttering. Stuttering is just a speech disorder and what you are describing is more like a language disorder or learning disorder which does not stick with the definition of stuttering. Profound PWS have no other problems than being difficult to push words out and that is why it is categorized as 'speech disorder'. Btw, I indeed found out you seemed to have deficits of weaving languages cuz your language, tbh was kinda messed up and I could have difficulties of figuring out the main points of your speech. You may have 'cluttering', please get therapist's helps, not kidding really.