YOU SAID:

I ended up getting the flu shot, but it could have been bad

INTO JAPANESE

インフルエンザの予防接種を受けましたが、それは悪かったかもしれません

BACK INTO ENGLISH

I was vaccinated against the flu, but it could have been bad

INTO JAPANESE

インフルエンザの予防接種を受けましたが、ひどかったかもしれません

BACK INTO ENGLISH

I was vaccinated against the flu, but it could have been terrible

INTO JAPANESE

インフルエンザの予防接種を受けましたが、ひどいものだったかもしれません

BACK INTO ENGLISH

I was vaccinated against the flu, but it could have been terrible