YOU SAID:

if i lay here, if i just lay here, will you lie with me and just forget the world

INTO JAPANESE

私がここに横たわっていれば、私がここに横たわっていれば、あなたは私と一緒に横たわり、世界を忘れるでしょう

BACK INTO ENGLISH

If I were lying here, if I were lying here, you would lie with me and forget the world

INTO JAPANESE

私がここに横たわっていたら、私がここに横たわっていたら、あなたは私と一緒に横たわり、世界を忘れるでしょう

BACK INTO ENGLISH

If I were lying here, if I were lying here, you would lie with me and forget the world