Rule 1: 1. The comparative أَفْعَلُ مِنْ
Bigger than, faster than, more beautiful than are all expressed by أَفْعَلُ followed by مِنْ than. The noun after مِنْ is in the genitive, as after every preposition. Before the article مِنْ takes a helping fatḥa: مِنَ الْبَحْرِ.
اَلْبَحْرُ أَوْسَعُ مِنَ الْبُحَيْرَةِ.
al-baḥru awsaʿu mina-l-buḥayrati
The sea is wider than the lake.
اَلْجَبَلُ أَكْبَرُ مِنَ التَّلِّ.
al-jabalu akbaru mina-t-talli
The mountain is bigger than the hill.
اَلْحِصَانُ أَسْرَعُ مِنَ الْجَمَلِ.
al-ḥiṣānu asraʿu mina-l-jamali
The horse is faster than the camel.
هٰذِهِ الزَّهْرَةُ أَجْمَلُ مِنْ تِلْكَ الزَّهْرَةِ.
hādhihi-z-zahratu ajmalu min tilka-z-zahrati
This flower is more beautiful than that flower.
اَلصَّخْرَةُ أَثْقَلُ مِنَ الْحَجَرِ.
aṣ-ṣakhratu athqalu mina-l-ḥajari
The rock is heavier than the stone.