どのバスに乗れば

which bus should I take

→ どの
phrase Rare #36,711
which bus should I take Usually followed by いいですか/いいです or よいか/よい to ask which bus is the right one to take. The ば form expresses a condition: “if I take...”
JA: 空港へ行くには、どのバスに乗ればいいですか。
EN: Which bus should I take to get to the airport?

どのバスに乗ればいいか分かんないんだけど

I don't know which bus I should take.

に行くにはどのバスに乗ればよいか教えて下さい

Could you tell me which bus I should take to get to the station?