Here's why:
* Vowels are sounds that are produced with an open vocal tract, allowing air to flow freely. The primary vowels in English are A, E, I, O, and U.
* Consonants are sounds produced by constricting or obstructing the airflow in the vocal tract.
* In "multiply," the "y" sound is produced by constricting the airflow, similar to how you would pronounce the "l" sound.
Let me know if you have any other questions!