YOU SAID:

I don't know how to ride a bike, but I can swim

INTO JAPANESE

私は自転車の乗り方を知らないが、私は泳ぐことができる

BACK INTO ENGLISH

I don't know how to ride a bicycle, but I can swim.

INTO JAPANESE

自転車の乗り方は分かりませんが、泳げます。

BACK INTO ENGLISH

I don't know how to ride a bicycle, but I can swim.