Common mistakes
The middle radical is و or ي. It stretches into a long vowel: قَالَ: and shortens before a consonant ending and in the jussive: قُلْتُ, لَمْ يَقُلْ.
طَوَلَ → طَالَ Past: heطَوَلَتْ → طَالَتْ Past: sheطَوَلْتَ → طُلْتَ Past: you (m.)طَوَلْتُ → طُلْتُ Past: I