When ḷ and luṭ follow, then sya and tāsi are respectively the affixes of a verbal root,
लृ is the common expression for लृङ् and लृट् formed by rejecting their special anubandhas, and means therefore the 2nd Future and the Conditional tenses. लुट् is the 1st Future also called the Periphrastic Future. Thus करिष्यति अकरिष्यत्, कर्ता. The इ of तासि is indicatory and shows that the nasal of the root is not to be dropped before this; as मन् 'to think', मन्ता 'he will think'.,
