If you work on phrases that are difficult to pronounce, you may find it easier to speak clearly in everyday conversation. Start slowly, and gradually work your way up to a normal pace. Identify problem syllables: if you notice that you have trouble enunciating your "B" sounds, try saying tongue twisters that play on the "B" syllable.  For "B" words, try: Bill had a billboard. Bill also had a board bill. The board bill bored Bill, so Bill sold his billboard and paid his board bill. Then the board bill no longer bored Bill, but though he had no board bill, neither did he have his billboard!  For "D" words, try: Did Doug dig David's garden or did David dig Doug's garden? or Do drop in at the Dewdrop Inn.  For "F" sounds, try: Four furious friends fought for the phone or Five flippant Frenchmen fly from France for fashions.  For "J" sounds, try: James just jostled Jean gently or Jack the jailbird jacked a jeep. Start very slowly and clearly, enunciating each syllable: "Five flipp-ant French-men fly from France for fash-ions." Get faster and faster while maintaining clarity. If you trip over words, stop and start again. With determined practice, you may learn to conquer difficult syllables. Don't be afraid to speak loudly and clearly. Reciting anything that someone else has written—poems, books, tongue twisters—is great for practicing confidence. Follow through with your words: finish as strong as you start! Be sure of what you intend to say, and the meaning will shine through. If you tend to mumble or slur your words, it can be difficult to break from the pattern and speak clearly. When you recite words, try to forget about the fact that you are speaking. Focus only on the words, their meaning, their beauty. Try not to overthink it.
مارس نطق الجُمل صعبة النطق. كرر الجمل مرارًا وتكرارًا. ثِق بحديثك.