YOU SAID:

it is the worst thing I have ever had to do

INTO JAPANESE

それは私が今までしなければならなかった最悪のことです

BACK INTO ENGLISH

That's the worst thing i ever had to do

INTO JAPANESE

それは私がやらなければならなかった最悪のことです

BACK INTO ENGLISH

That is the worst thing I had to do

INTO JAPANESE

それは私がしなければならなかった最悪のことです

BACK INTO ENGLISH

That is the worst thing I had to do