je ne sais pas, mais

Celui-là, je ne sais pas, mais il me semble que tu ferais mieux de t'en méfier.

That one, I don't know, but it seems to me you'd better be wary of it.

— Une journée particulière (1977)

Je ne sais pas, mais c'est peu probable.

I don't know, but it's unlikely.

— Burning (2018)

Je ne sais pas, mais on va savoir.

I don't know, but we'll find out.

Je ne sais pas, mais je peux essayer.

I don't know, but I can try.

Quant à vous, je ne sais pas, mais pour moi c'est vraiment très important.

I don’t know about you, but it’s really important to me.

Je ne sais pas, mais il va venir.

I don't know, but he'll come.

Je ne sais pas, mais cela ne me dit rien de bon.

I don't know, but it doesn't bode well.

— L'Empire contre-attaque (1980)

Je ne sais pas, mais ça avait l'air important.

I don't know, but it seemed important.

— The Machinist (2004)

Je ne sais pas, mais je vais trouver.

I don't know, but I'll find out.

— Indiana Jones et la dernière croisade (1989)

Je ne sais pas, mais je l'entends.

I don't know, but I hear it.