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.
اِحْتَوَجَ → اِحْتَاجَ Past: heاِحْتَوَجَتْ → اِحْتَاجَتْ Past: sheاِحْتَوَجْتَ → اِحْتَجْتَ Past: you (m.)اِحْتَوَجْتُ → اِحْتَجْتُ Past: I