deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
The r र् sound in words like **ApUryamANa- आपूर्यमाणॱ is a tap. It sounds a lot like the "dd" in some American pronunciations of "ladder", or like the "r" sound in the Spanish word "pero" (not the one in "perro").
However, there is a very subtle difference: right after saying the English and Spanish tap sounds, the tongue tip will inmediately move forward. But after the Sanskrit tap sound r र्, the tongue tip will stay roughly where it is, moving maybe a little forward or backward, but not going all the way to the front.
The same thing happens when saying the Sanskrit sounds R ऋ RR ॠ S ष्. The tongue does not move back down inmediately, but stays a bit curled throatward. Not full curl.
That does NOT happen with T ट् Th ठ् D ड् Dh ढ् N ण्. These five curl the tongue back, stop the air, and then the tongue inmediately goes back to its normal flat position.
So when we say ApUryamANam आपूर्यमाणम् -
(1) The tongue starts flat and stays flat during apU अपू.
(2) At the r र् the tongue moves throatward (maybe not so much as dor T ट्), touches briefly the top, and goes down a little bit, but it STAYS a bit raised and a bit curled back.
(3) During the yamA यमा the tongue stays a bit curled, because there's no need tio uncurl it.
(4) At the N ण्, the tongue touches up and then it inmediately goes back to flat position.
(5) Then it stays flat during the am अम्.
You have to practise doing that. Otherwise you'll never get the /Natvam rule into autopilot mode. See what Jessica Friedrich has to say about learning to do the Rubik's cube.