The word(s) "perjurarem" appears 2 time(s) in 2 verse(s) in Quran in Portuguese (Prof. Samir El-Hayek) translation.

(1) Porém, se depois de haverem feito o tratado convosco, perjurarem e difamarem a vossa religião, combatei os chefesincrédulos, pois são perjuros; talvez se refreiem.

(سورة التوبة, At-Tawba, Chapter #9, Verse #12)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(2) Aqueles que não perjurarem e, quando se depararem com vaidades, delas se afastarem com honra,

(سورة الفرقان, Al-Furqaan, Chapter #25, Verse #72)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)