YOU SAID:

my grandfather, and my grandfather clock are both obese

INTO JAPANESE

私の祖父、私の祖父の時計はともに肥満です

BACK INTO ENGLISH

My grandfather, my grandfather's clock are both obese

INTO JAPANESE

私の祖父、私の祖父の時計は両方とも肥満です

BACK INTO ENGLISH

My grandfather, my grandfather's clocks are both obese

INTO JAPANESE

私の祖父、私の祖父の時計は両方とも肥満です

BACK INTO ENGLISH

My grandfather, my grandfather's clocks are both obese