YOU SAID:

i want to tell her how much she is important to me

INTO JAPANESE

彼女が私にとってどれほど大切かを伝えたい

BACK INTO ENGLISH

I want to tell you how important she is to me

INTO JAPANESE

彼女が私にとってどれほど重要かを伝えたい

BACK INTO ENGLISH

I want to tell you how important she is to me