You will need
  • assertiveness.
Instruction
1
Within 1-2 minutes, slowly pronounce the three sounds DE TE LE without stopping: TE TE LE TE TE LE...
Then accelerate the pace and pronounce the same sounds faster and faster for 5-6 minutes. Pay attention to the pronunciation of the sound LE, remember that the tip of the tongue should be on the bumps over the upper teeth. You slowly should be a sound "R".
2
Now start to speak slightly changed sounds: DE, TE DE. The first sound of DE say, as accustomed to say, and the second TE try to say so that the tip of the tongue was on the cusps on the upper teeth. So this sound is pronounced by the British.
Start slowly and without stopping to say DAE DAE DAE DAE DAE DAE DAE DAE DAE... for 5-7 minutes.
3
Then, getting faster and faster until you hear and feel a clear, true sound "R".
Then recite 10 times the following words: DART, DART, BUSTARD, ROLL, THROTTLE, FIREWOOD, TREMOR, CLOT, TROLL, COLLABOS, ROPE, BUCKET, HIP, SLICK, UNDERGROUND, WISELY.
4
After he had uttered the previous words, pronounce the following words: CONSTRUCTION, TRAM, HAIRCUT, SHAVING, DIRTY, RAINBOW, JOY, FEAR, PRONOUNCE CORRECTLY, ROGUE, DISCHARGED, TARRAGON, FURROW, SIDE, HELLO, START, VARIETY, ENMITY, STENCH, LIAR...
Repeat the exercise for formulation of sound systematically, daily, 3 times a day: morning, afternoon and evening. Only then will you achieve the desired result after some time - stop burring. Depending on the intensity and regularity of occupation, and the severity of speech disorders, it can take from a couple of months to a year or more.