YOU SAID:

my small black dog is barking very loudly at the other dogs in the garden

INTO JAPANESE

私の小さな黒い犬が庭にいる他の犬に向かって非常に大声で吠えています。

BACK INTO ENGLISH

My little black dog is barking very loudly at other dogs in the yard.

INTO JAPANESE

私の小さな黒い犬は庭にいる他の犬に向かって非常に大声で吠えています。

BACK INTO ENGLISH

My little black dog is barking very loudly at other dogs in the yard.