YOU SAID:

I painted an octopus on my wall

INTO JAPANESE

私は壁にタコを塗った

BACK INTO ENGLISH

I painted an octopus on the wall.

INTO JAPANESE

私は壁にタコを塗った。

BACK INTO ENGLISH

I painted the wall with octopus.

INTO JAPANESE

私はタコで壁を塗った。

BACK INTO ENGLISH

I painted the wall with an octopus.

INTO JAPANESE

私はタコで壁を塗った。

BACK INTO ENGLISH

I painted the wall with an octopus.