What is the 31 letters of Filipino alphabet in 1985?

There's a misunderstanding. The Filipino alphabet has 28 letters, not 31, and it hasn't changed since its implementation in 1987.

Here are the letters:

A, B, K, D, E, G, H, I, L, M, N, Ng, O, P, R, S, T, U, W, Y, and the 7 diacritical marks: Á, É, Í, Ó, Ú, Ň, and Ṙ

The Filipino alphabet in 1985 was the same as the Spanish alphabet, which had 28 letters. The 1987 alphabet standardized the writing system, introducing diacritical marks to represent specific sounds.

Let me know if you have any other questions!