YOU SAID:

We are going to build a wall.

INTO JAPANESE

私たちは壁を構築しています。

BACK INTO ENGLISH

We built the wall.

INTO JAPANESE

我々 は、壁を建てた。

BACK INTO ENGLISH

We built a wall.

INTO JAPANESE

私たちは壁を建てた。

BACK INTO ENGLISH

We built a wall.