that sort of thing
そんなもんだと思っていたよ。
That's what I thought.
そんなもんだ
That’s just how it is.
— ザ・マン・フロム・アース (2007)
子供はそんなもんだろ
Kids are like that.
— Good Luck, Have Fun, Don't Die (2026)
親子ってそんなもんじゃないと思う
I don't think that's what the relationship between parents and children is supposed to be like.
— 東京物語 (1953)
人生なんてそんなもんよ。
That's just how life is.
いいからもうそんなもん下ろせって
Just put that thing down already!
— 天気の子 (2019)
そんなもんかな？
I guess that's about right?
— ブエノスアイレス (1997)