Full conjugation contains six third-person, six second-person, and two first-person forms. Here is the 14-form active past of قَالَ:
PronounActive pastPronounActive past
هُوَقَالَأَنْتَقُلْتَ
هُمَا (masc.)قَالَاأَنْتُمَا (masc.)قُلْتُمَا
هُمْقَالُواأَنْتُمْقُلْتُمْ
هِيَقَالَتْأَنْتِقُلْتِ
هُمَا (fem.)قَالَتَاأَنْتُمَا (fem.)قُلْتُمَا
هُنَّقُلْنَأَنْتُنَّقُلْتُنَّ
أَنَاقُلْتُنَحْنُقُلْنَا
A shorter hollow stem is conditioned by person/ending; it does not create a different root.