YOU SAID:

i like eating ketchup with toothpaste

INTO JAPANESE

私はケチャップを歯磨き粉と一緒に食べるのが好きです

BACK INTO ENGLISH

I like to eat ketchup with toothpaste

INTO JAPANESE

ケチャップに歯磨き粉を付けて食べるのが好きです

BACK INTO ENGLISH

I like eating ketchup with toothpaste.

INTO JAPANESE

私はケチャップを歯磨き粉と一緒に食べるのが好きです。

BACK INTO ENGLISH

I like eating ketchup with toothpaste.