15. What are words made up of?

16. What does morphology teach us?

15. Words are made up of:

• One letter, for example the bā preposition in بِحَمدِ الله (with the praise of Allah)

• More than one letter (up to seven letters). For example: استِخبَار (inquiry)

16. Morphology teaches us the forms of single words and their different states before being joined together with other words.