deriv SD cv ashtadhyayi.com hei.de LSK ETT STT a 3.3.163 ALPH OLDHOMEPAGE NEWHOMEPAGE

praiSAtisarga;prApta-kAleSu kRtyAz ca

प्रैषातिसर्गॱप्राप्तॱकालेषु कृत्याश्च ONPANINI 33163

The /kRtya and /loT can express "encouragement", "permission", and "right time".

The /liG cannot express these senses.

The /kRtya and the /loT can express the << vidhinimantr... senses as well.

E.g., tvayA kaTaH kartavyaH त्वया कटः कर्तव्यः may mean —

You should make a mat. (encouragement)
You have my permission to make a mat.
It's a good time to make a mat.

also, by < loTca, tvaG kaTaG kuru त्वं कटं कुरु can have the same meanings too.