YOU SAID:
When I went to disneyland, I went with my dad.
INTO JAPANESE
ディズニーランドに行くときは、父と一緒に行きました。
BACK INTO ENGLISH
When I went to Disneyland, I went with my father.
INTO JAPANESE
私がディズニーランドに行ったとき、私は父と一緒に行きました。
BACK INTO ENGLISH
When I went to Disneyland, I went with my father.
That didn't even make that much sense in English.