There are no such things as participles in Japanese. And why are you asking about Japanese if you are already Japanese? It is all so peculiar.

Do you mean は　が　を　と　に & etc? They have different functions; like は is placed after a noun to make it the subject of the sentence. I know what you mean coz my parents made me study the basics before they took me with them to Japan. But really, shouldn't you know this already? あなたはほんとうに日本人ですか。