diff --git a/i18n/pt.json b/i18n/pt.json
index 4111c0f5..a0e743e6 100644
--- a/i18n/pt.json
+++ b/i18n/pt.json
@@ -29,54 +29,78 @@
     "Discussion": "Discussão",
     "Toggle navigation": "Mudar navegação",
     "%d seconds": [
-        "%d segundo",
-        "%d segundos"
+        "%d second (singular)",
+        "%d seconds (1st plural)",
+        "%d seconds (2nd plural)",
+        "%d seconds (3rd plural)"
     ],
     "%d minutes": [
-        "%d minuto",
-        "%d minutos"
+        "%d minute (singular)",
+        "%d minutes (1st plural)",
+        "%d minutes (2nd plural)",
+        "%d minutes (3rd plural)"
     ],
     "%d hours": [
-        "%d hora",
-        "%d horas"
+        "%d hour (singular)",
+        "%d hours (1st plural)",
+        "%d hours (2nd plural)",
+        "%d hours (3rd plural)"
     ],
     "%d days": [
-        "%d dia",
-        "%d dias"
+        "%d day (singular)",
+        "%d days (1st plural)",
+        "%d days (2nd plural)",
+        "%d days (3rd plural)"
     ],
     "%d weeks": [
-        "%d semana",
-        "%d semanas"
+        "%d week (singular)",
+        "%d weeks (1st plural)",
+        "%d weeks (2nd plural)",
+        "%d weeks (3rd plural)"
     ],
     "%d months": [
-        "%d mês",
-        "%d meses"
+        "%d month (singular)",
+        "%d months (1st plural)",
+        "%d months (2nd plural)",
+        "%d months (3rd plural)"
     ],
     "%d years": [
-        "%d ano",
-        "%d anos"
+        "%d year (singular)",
+        "%d years (1st plural)",
+        "%d years (2nd plural)",
+        "%d years (3rd plural)"
     ],
     "Never": "Nunca",
     "Note: This is a test service: Data may be deleted anytime. Kittens will die if you abuse this service.": "Nota: Este é um serviço de teste. Dados podem ser perdidos a qualquer momento. Gatinhos morrerão se você abusar desse serviço.",
     "This document will expire in %d seconds.": [
-        "Este documento irá expirar em um segundo.",
-        "Este documento irá expirar em %d segundos."
+        "This document will expire in %d second. (singular)",
+        "This document will expire in %d seconds (1st plural)",
+        "This document will expire in %d seconds (2nd plural)",
+        "This document will expire in %d seconds (3rd plural)"
     ],
     "This document will expire in %d minutes.": [
-        "Este documento irá expirar em um minuto.",
-        "Este documento irá expirar em %d minutos."
+        "This document will expire in %d minute. (singular)",
+        "This document will expire in %d minutes (1st plural)",
+        "This document will expire in %d minutes (2nd plural)",
+        "This document will expire in %d minutes (3rd plural)"
     ],
     "This document will expire in %d hours.": [
-        "Este documento irá expirar em uma hora.",
-        "Este documento irá expirar em %d horas."
+        "This document will expire in %d hour. (singular)",
+        "This document will expire in %d hours (1st plural)",
+        "This document will expire in %d hours (2nd plural)",
+        "This document will expire in %d hours (3rd plural)"
     ],
     "This document will expire in %d days.": [
-        "Este documento irá expirar em um dia.",
-        "Este documento irá expirar em %d dias."
+        "This document will expire in %d day. (singular)",
+        "This document will expire in %d days (1st plural)",
+        "This document will expire in %d days (2nd plural)",
+        "This document will expire in %d days (3rd plural)"
     ],
     "This document will expire in %d months.": [
-        "Este documento irá expirar em um mês.",
-        "Este documento irá expirar em %d meses."
+        "This document will expire in %d month. (singular)",
+        "This document will expire in %d months (1st plural)",
+        "This document will expire in %d months (2nd plural)",
+        "This document will expire in %d months (3rd plural)"
     ],
     "Please enter the password for this paste:": "Por favor, digite a senha para essa cópia:",
     "Could not decrypt data (Wrong key?)": "Não foi possível decifrar os dados (Chave errada?)",
@@ -100,6 +124,15 @@
     "Delete data": "Excluir dados",
     "Could not create paste: %s": "Não foi possível criar cópia: %s",
     "Cannot decrypt paste: Decryption key missing in URL (Did you use a redirector or an URL shortener which strips part of the URL?)": "Não foi possível decifrar a cópia: chave de decriptografia ausente na URL (Você utilizou um redirecionador ou encurtador de URL que removeu parte dela?)",
+    "B": "B",
+    "KiB": "KiB",
+    "MiB": "MiB",
+    "GiB": "GiB",
+    "TiB": "TiB",
+    "PiB": "PiB",
+    "EiB": "EiB",
+    "ZiB": "ZiB",
+    "YiB": "YiB",
     "Format": "Formato",
     "Plain Text": "Texto sem formato",
     "Source Code": "Código fonte",