YOU SAID:

I want to go outside and scratch my back on a tree

INTO JAPANESE

私は外に出て、木の上で背中を傷つけたい

BACK INTO ENGLISH

I want to go outside and hurt my back on the tree

INTO JAPANESE

私は外に出て木の上に背中を傷つけたい

BACK INTO ENGLISH

I want to go out and hurt my back on the tree

INTO JAPANESE

私は外に出て、木の上に背中を傷つけたい

BACK INTO ENGLISH

I want to go outside and hurt my back on a tree

INTO JAPANESE

私は外に出て、木の上に背中を傷つけたい

BACK INTO ENGLISH

I want to go outside and hurt my back on a tree