G4417–πταίω–ptaiō

I say then, Have they stumbled in order that they might fall? Far be the thought: but by their fall [ergänzt: there is] salvation to the nations to provoke them to jealousy.

ἔπταισαν eptaisan “they did stumble”

For whoever shall keep the whole law and shall offend in one [ergänzt: point], he has come under the guilt of [ergänzt: breaking] all.

πταίσῃ ptaisē “may stumble”

For we all often offend. If any one offend not in word, *he* [ergänzt: is] a perfect man, able to bridle the whole body too.

πταίομεν ptaiomen “we stumble”πταίει, ptaiei “does stumble,”

Wherefore the rather, brethren, use diligence to make your calling and election sure, for doing these things ye will never fall;

πταίσητέ ptaisēte “shall you stumble”