YOU SAID:

But why must things happen this way!

INTO JAPANESE

しかし、なぜこのように起こる必要があるのでしょう！

BACK INTO ENGLISH

But why should this happen!

INTO JAPANESE

しかし、なぜこれが起こるのでしょう！

BACK INTO ENGLISH

But why does this happen!

INTO JAPANESE

しかし、なぜこれが起こるのでしょう！

BACK INTO ENGLISH

But why does this happen!