اعراب ولقد اهتم العلماء بتطوير وسائل المواصلات اهتماما كبيرا

The scholars have taken a great interest in developing transportation methods. They have focused on this with great attention and care. The word “القد” is used for beginning and “ولقد” is used for investigation. The word “اهتم” is a past tense verb indicating interest, and “العلماء” is the subject of the sentence. “بتطوير” is a preposition followed by a noun in the genitive case, indicating development. “وسائل” is an adjective in the genitive case, describing “المواصلات” which is the object in the genitive case. “اهتماما” is an absolute object with a fatha, and “كبيرا” is an adjective in the accusative case with a fatha.