I was browsing through the Wikipedia page on relative pronouns and I found this table: Position With explicit relative pronoun With omitted relative pronoun In formal English Subject That’s the man [who ran away]. — That’s the man [who ran away]. Direct object That’s the man [who I saw yesterday]. That’s the man [I saw yesterday]. That’s the man [whom I saw yesterday]. Indirect object That’s the man [who I gave the letter to]. That’s the man [I