YOU SAID:

i am a small child at the age of eleven

INTO JAPANESE

私は 11 歳で小さい子

BACK INTO ENGLISH

I was at the age of 11 small children

INTO JAPANESE

小さな子供が 11 歳の頃

BACK INTO ENGLISH

Small children was 11 years old.

INTO JAPANESE

小さな子供は 11 歳だった。

BACK INTO ENGLISH

Little children was 11 years old.

INTO JAPANESE

小さな子供たちは 11 歳だった。

BACK INTO ENGLISH

Little children was 11 years old.