deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
In the /luT, the verb root gets soft /tAs by syatAsIlRl.... The verb will usually end with —
**tA' ताऽ **tArau' तारौऽ **tAras' तारस्ऽ
**tAsi तासि tAsthas तास्थस् tAstha तास्थ
**tAsmi तास्मि tAsvas तास्वस् tAsmas तास्मस्
**tA' ताऽ **tArau' तारौऽ **tAras' तारस्ऽ
**tAse तासे **tAsAthe तासाथे **tAdhve ताध्वे
**tAhe ताहे **tAsvahe तास्वहे **tAsmahe तास्महे
Why did you say "usually"?
Because jhaSastathordh... can still change the t त्, as in
labh लभ् + **tArau' तारौऽ → !**labdhArau लब्धारौ
How do the sUtras form these?
See flat luT.
See bent luT.