YOU SAID:

i sat on the grass with a phone on my hand and with a dog

INTO JAPANESE

私は携帯電話と犬を持って芝生に座った

BACK INTO ENGLISH

I sat on the grass with my cell phone and dog

INTO JAPANESE

私は携帯電話と犬と一緒に芝生に座った

BACK INTO ENGLISH

I sat on the grass with my cell phone and dog