YOU SAID:

i cant believe you died of a cold

INTO JAPANESE

風邪で死んだとは思えない

BACK INTO ENGLISH

I do not think it died of a cold

INTO JAPANESE

風邪で死んだとは思わない

BACK INTO ENGLISH

I do not think she died of a cold

INTO JAPANESE

私は彼女が風邪で亡くなったとは思わない

BACK INTO ENGLISH

I do not think she died of a cold