間違えてる

making a mistake, being mistaken

→ 間違える
間違え make a mistake + Te-form (conjunctive) + Progressive/resultative aspect
verb · present indicative Rare #33,828
making a mistake, being mistaken Casual contraction of 間違えている.
JA: 彼は住所を間違えてる。
EN: He has the wrong address.
Conjugation of 間違える
Indicative present
間違えてる

間違えてる

You've got it wrong.

僕の着信音は何かなってでも間違えてる

I wonder what my ringtone is—but even that’s wrong.

— Hoje Eu Quero Voltar Sozinho (2014)

製品を間違えてる

You’ve got the wrong product.

— 最強のふたり (2011)

私の名前綴り間違えてる

You spelled my name wrong.

探す所を間違えてるんじゃ

Maybe you're looking in the wrong place?

— パディントン2 (2017)