そうは思わない

I don't think so

→ そう
phrase Uncommon #12,047
I don't think so The は adds contrastive emphasis, often implying “I don't think that's the case.”
JA: 彼が来るとはそうは思わない。
EN: I don't think he'll come.

そうは思わないな

I don't think so.

— ラ・ラ・ランド (2016)

僕もそうは思わない

I don't think so either.

— 落下の解剖学 (2023)

そうは思わない

I don't think so.

— ミスティック・リバー (2003)

そうは思わないけど。

I don't think so, though.

私はそうは思わないがね。

I don't think so, though.

そうは思わないね

I don't think so.

— 人生スイッチ (2014)

最初と同じくらい強く当たったかもしれないが、そうは思わない。

I might have hit it just as hard as I did at first, but I don’t think so.

そうは思わないがな

I don't think so, though.

— 善き人のためのソナタ (2006)

いいや、そうは思わないね。

No, I don't think so.