guessing dadrak

[eroux]

In some contexts (e.g. phonetics), it would be useful to know if there's a da drag or not on a certain syllable, this can often be guessed through context.

For instance གྱུར, བསྐོར or བསྟན don't always have an invisible da drag, but when they are followed by a particle, the particle's form indicates that there is or isn't a da drag:

• བསྐོར་ཅིང --> བསྐོར has a da drag
• བསྐོར་ཞིང --> བསྐོར has no da drag
• བསྟན་ཀྱང --> བསྟན has a da drag
• བསྟན་ཡང --> བསྟན has no da drag

etc.

There are of course a few words that conventionally take a da drag, but it seems there's no consensus on the list, apart from ཀུན, ཤིན and འོན