そうだが

that's true, but

→ そう

phrase Rare #20,673

that's true, but そうだが links an acknowledgment to a contrasting point. It has a plain, somewhat direct tone.

JA: そうだが、まだ確認が必要だ。

EN: That's true, but we still need to check.

Looks like I’ll have to deal with you first.

— イノセンス (2004)

Apparently.

— Love Letter (1995)

I knew it.

That may be so, but why?

— 暗殺の森 (1971)

The other kids are like that too, but...

— コーラス (2004)

The people are something else, but the women are incredible.

— イル・ポスティーノ (1994)

Yeah, so what?

That’s how it is in the picture, but what about in reality?

— マルコムＸ (1992)