in the 3rd lesson i studied some plural words:
tree-trees- أشجار
coin-coins-عملات
flower-flowers-أزهار
house-houses-بيوت
building-buildings- مباني
car-cars-سيارات
woman-women-نسوة
boy-boys-أولاد
girl-girls-بنات
man-men-رجال
In the previous lesson you can see the singlural of these words.
in the 4th lesson you can learn the numbers:
I didn't save the words here cuz i have studied the numbers before but here is a picture.