Rules regarding Kana wa Akhwatuha and Inna wa Akhwatuha .
If you are interested in exploring more resources for learning Arabic, here are some additional suggestions: nahwu wadih pdf arabic
Parts of speech (Ism, Fi'l, Harf), nominal and verbal sentences, basic verb tenses, and simple case endings ( I'rab ). Intermediate to Advanced Rules regarding Kana wa Akhwatuha and Inna wa Akhwatuha