べる
teo sashinoberu

Ichidan Verb
Idiomatic Expression

1. to lend a hand; to give a hand; to help; to extend a helping hand

そのわかい おとこ べたのでわたしはそれを にぎった。
sono wakai otokoga teo sashinobetanode watashiwa soreo nigitta.
The young man put out his hand and I shook it.