YOU SAID:

We need to build a wall and it has to be built quickly

INTO JAPANESE

壁を構築する必要があり、迅速に構築する必要があります

BACK INTO ENGLISH

Need to build walls, need to build quickly

INTO JAPANESE

壁を構築する必要がある、迅速に構築する必要がある

BACK INTO ENGLISH

Need to build walls, need to build quickly