YOU SAID:

two can keep a secret if one of them is dead

INTO JAPANESE

どちらかが死んでも二人は秘密を守れる

BACK INTO ENGLISH

Even if one of us dies, the two of us can keep the secret.

INTO JAPANESE

たとえどちらかが死んでも、二人なら秘密を守れる。

BACK INTO ENGLISH

Even if one of them dies, the two of them can keep the secret together.

INTO JAPANESE

たとえどちらかが死んでも、二人は秘密を守ることができます。

BACK INTO ENGLISH

Even if one of them dies, the two can keep their secret.

INTO JAPANESE

たとえどちらかが死んでも、二人は秘密を守ることができる。

BACK INTO ENGLISH

Even if one of them dies, the two can keep their secret.