Not enough 3rd-human being item pronouns, which may get replaced by their respective subject pronouns or omitted wholly (eu vi ele or perhaps just eu vi rather than eu o vi for "I saw him/it") dropping prepositions before subordinate and relative clauses commencing with conjunctions (Ele precisa que vocês ajudem https://beadvices.net/profile.php?action=view&op=userinfo&from=space&name=Your_Account&user=emmanuel_bach-451694