YOU SAID:

I'm puzzled that he didn't reply.

INTO JAPANESE

彼が返事をしなかったことに当惑している。

BACK INTO ENGLISH

I'm embarrassed that he didn't reply.

INTO JAPANESE

私は彼が返事をしなかったことを恥ずかしく思います。

BACK INTO ENGLISH

I'm ashamed that he didn't reply.

INTO JAPANESE

彼が返事をしなかったことを私は恥じている.

BACK INTO ENGLISH

I am ashamed that he did not reply.

INTO JAPANESE

彼が返事をしなかったことを私は恥じている.

BACK INTO ENGLISH

I am ashamed that he did not reply.