YOU SAID:

the past is the future and the future was the past

INTO JAPANESE

過去は未来であり、未来は過去であった

BACK INTO ENGLISH

The past was the future, the future was the past

INTO JAPANESE

過去は未来未来は過去

BACK INTO ENGLISH

The past is the future. The future is the past.

INTO JAPANESE

過去は未来だ未来は過去だ

BACK INTO ENGLISH

The past is the future. The future is the past.