tu - adaadigaNa parasmaipadi ##to be strong##
taviiti-tauti tutaH tuvanti\, taviiShi-tauShi tuthaH tutha\, taviimi-taumi tuvaH tumaH| - laT
toShyati toShyataH toShyanti\, toShyasi toShyathaH toShyatha\, toShyaami toShyaavaH toShyaamaH|  - lRRiT
taviitu-tautu-tutaat tutaam tuvantu\, tuhi-tutaat tutam tuta\, tavaani tavaava tavaama|  - loT
ataviit-ataut atutaam atuvan\, ataviiH-atauH atutam atuta\, atavam atuva atuma|  - la~N
atoShyat atoShyataam atoShyan\, atoShyaH atoShyatam atoShyata\, atoShyam atoShyaava atoShyaama|  - lRRi~N
tuyaat tuyaataam tuyuH\, tuyaaH tuyaatam tuyaata\, tuyaam tuyaava tuyaama|  - vidhili~N