diff --git a/i18n/pl.json b/i18n/pl.json
index 677eee53..6d2ea8c7 100644
--- a/i18n/pl.json
+++ b/i18n/pl.json
@@ -29,61 +29,78 @@
     "Discussion": "Dyskusja",
     "Toggle navigation": "Przełącz nawigację",
     "%d seconds": [
-        "%d second",
-        "%d second",
-        "%d second"
+        "%d second (singular)",
+        "%d seconds (1st plural)",
+        "%d seconds (2nd plural)",
+        "%d seconds (3rd plural)"
     ],
     "%d minutes": [
-        "%d minut",
-        "%d minut",
-        "%d minut"
+        "%d minute (singular)",
+        "%d minutes (1st plural)",
+        "%d minutes (2nd plural)",
+        "%d minutes (3rd plural)"
     ],
     "%d hours": [
-        "%d godzina",
-        "%d godzina",
-        "%d godzinę"
+        "%d hour (singular)",
+        "%d hours (1st plural)",
+        "%d hours (2nd plural)",
+        "%d hours (3rd plural)"
     ],
     "%d days": [
-        "%d dzień",
-        "%d dzień",
-        "%d dzień"
+        "%d day (singular)",
+        "%d days (1st plural)",
+        "%d days (2nd plural)",
+        "%d days (3rd plural)"
     ],
     "%d weeks": [
-        "%d tydzień",
-        "%d tydzień",
-        "%d tydzień"
+        "%d week (singular)",
+        "%d weeks (1st plural)",
+        "%d weeks (2nd plural)",
+        "%d weeks (3rd plural)"
     ],
     "%d months": [
-        "%d miesiąc",
-        "%d miesiąc",
-        "%d miesiąc"
+        "%d month (singular)",
+        "%d months (1st plural)",
+        "%d months (2nd plural)",
+        "%d months (3rd plural)"
     ],
     "%d years": [
-        "%d rok",
-        "%d rok",
-        "%d rok"
+        "%d year (singular)",
+        "%d years (1st plural)",
+        "%d years (2nd plural)",
+        "%d years (3rd plural)"
     ],
     "Never": "nigdy",
     "Note: This is a test service: Data may be deleted anytime. Kittens will die if you abuse this service.": "Notka: To jest usługa testowa. Dane mogą zostać usunięte w dowolnym momencie. Kociątka umrą, jeśli nadużyjesz tej usługi.",
     "This document will expire in %d seconds.": [
-        "Ten dokument wygaśnie za %d sekundę.",
-        "Ten dokument wygaśnie za %d sekund."
+        "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.": [
-        "Ten dokument wygaśnie za %d minutę.",
-        "Ten dokument wygaśnie za %d minut."
+        "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.": [
-        "Ten dokument wygaśnie za godzinę.",
-        "Ten dokument wygaśnie za %d godzin."
+        "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.": [
-        "Ten dokument wygaśnie za %d dzień.",
-        "Ten dokument wygaśnie za %d dni."
+        "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.": [
-        "Ten dokument wygaśnie za miesiąc.",
-        "Ten dokument wygaśnie za %d miesięcy."
+        "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:": "Wpisz hasło dla tej wklejki:",
     "Could not decrypt data (Wrong key?)": "Nie udało się odszyfrować danych (zły klucz?)",
@@ -107,6 +124,15 @@
     "Delete data": "Skasuj dane",
     "Could not create paste: %s": "Nie udało się utworzyć wklejki: %s",
     "Cannot decrypt paste: Decryption key missing in URL (Did you use a redirector or an URL shortener which strips part of the URL?)": "Nie udało się odszyfrować wklejki - brak klucza deszyfrującego w adresie (użyłeś skracacza linków, który ucina część adresu?)",
+    "B": "B",
+    "KiB": "KiB",
+    "MiB": "MiB",
+    "GiB": "GiB",
+    "TiB": "TiB",
+    "PiB": "PiB",
+    "EiB": "EiB",
+    "ZiB": "ZiB",
+    "YiB": "YiB",
     "Format": "Format",
     "Plain Text": "Czysty tekst",
     "Source Code": "Kod źródłowy",