Insufficient third-individual object pronouns, which may get replaced by their respective subject matter pronouns or omitted totally (eu vi ele and even just eu vi instead of eu o vi for "I observed him/it") dropping prepositions before subordinate and relative clauses beginning with conjunctions (Ele precisa que vocês ajudem as https://cntechapp.com/finding-the-better-motorcar-haunt-centre-2021-3869553811751359593