How do you form relative clauses that involves first person action? For example : "There aren't people I can talk to". Basically my doubt is about all those questions that require a particle like "to", "ni" and the like, when you can't use V-te ageru/kureru/morau to explicitate who's doing what t...

Let me try: 言う： The only thing on your list that I'd actually translate as "to say" or "to tell". This is sort of "neutral" in that it really just means to say. For example: 「彼女がいない」と言ったでしょう？ = He doesn't have a girlfriend, I told you so already! Note that as I am not giving any context y...