G4417–πταίω–ptaiō

Therfor Y seie, Whether thei offendiden so, that thei schulden falle doun? God forbede. But bi the gilt of hem helthe is maad to hethene men, that thei sue hem.

ἔπταισαν eptaisan “they did stumble”

And who euere kepith al the lawe, but offendith in oon, he is maad gilti of alle.

πταίσῃ ptaisē “may stumble”

For alle we offenden in many thingis. If ony man offendith not in word, this is a perfit man; for also he may lede aboute al the bodi with a bridil.

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

Wherfor, britheren, be ye more bisi, that by goode werkis ye make youre clepyng and chesyng certeyn;

πταίσητέ ptaisēte “shall you stumble”