The word(s) "achamos" appears 5 time(s) in 5 verse(s) in Quran in Portuguese (Prof. Samir El-Hayek) translation.

(1) Porém, os chefes incrédulos, dentre seu povo, disseram: Certamente, vemos-te em insensatez e achamos que ésmentiroso.

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #66)
(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) Porque nunca encontramos, na maioria deles, promessa alguma, mas sim achamos que a maioria deles era depravada.

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #102)
(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)

(3) Quanto ao barco, pertencia aos pobres pescadores do mar e achamos por bem avariá-lo, porque atrás dele vinha um reique se apossava, pela força, de todas as embarcações.

(سورة الكهف, Al-Kahf, Chapter #18, Verse #79)
(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)

(4) (Disseram os gênios): Quisemos inteirar-nos acerca do céu e o achamos pleno de severos guardiães e flamígeros meteoros.

(سورة الجن, Al-Jinn, Chapter #72, Verse #8)
(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)

(5) E achamos que jamais poderemos safar-nos de Deus na terra, nem tampouco iludi-Lo, fugindo (para outras paragens).

(سورة الجن, Al-Jinn, Chapter #72, 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)