Here's why:
* Diphthongs in Tagalog are combinations of two vowel sounds within a single syllable. The most common diphthongs are "ay," "ey," "iy," "oy," and "uy."
* Tagalog words typically end in a vowel sound. A few exceptions exist, but they are not common.
* The "ey" diphthong is usually found within a word, not at the end.
Therefore, it's highly unlikely to find a Tagalog word ending in "ey" with a diphthong.
Let me know if you have any other Tagalog word questions!