YOU SAID:

i walk down the river

INTO JAPANESE

私は川を歩く

BACK INTO ENGLISH

I walk the river.

INTO JAPANESE

私は川を歩く。

BACK INTO ENGLISH

I walk along the river.

INTO JAPANESE

私はよくその川に沿って散歩したものだ。

BACK INTO ENGLISH

I would walk along the river.

INTO JAPANESE

私はよくその川に沿って散歩したものだ。

BACK INTO ENGLISH

I would walk along the river.