Unwritten Sound Contrasts

Even if two words look exactly the same on paper, they can mean completely different things based on two factors:

1. Stress (Diin): This involves pitch and duration. When the stress is on the second-to-last (penultimate) syllable, the vowel is held longer. When the stress is on the last (ultimate) syllable, the vowel is short but pronounced with higher pitch.
2. Glottal Stop (Impit na tunog): This is a sharp closure of the throat at the end of a word, like the sound in the middle of 'uh-oh.' In connected speech, this sound often disappears (elides), but the stress remains, and the preceding vowel often undergoes compensatory lengthening.

The Four Traditional Types:

• Malumay (unmarked): Stress on the second-to-last syllable (long vowel), no glottal stop. Example: bukas (tomorrow). This is the default pattern.
• Malumì (grave accent / `): Stress on the second-to-last syllable (long vowel) + final glottal stop. Example: batà (child).
• Mabilis (acute accent / ´): Stress on the last syllable (short vowel), no glottal stop. Example: bukás (open).
• Maragsâ (circumflex / ^): Stress on the last syllable (short vowel) + final glottal stop. Example: basâ (wet).

Important Rule: Because the final glottal stop is a sharp closure following a vowel, Malumì and Maragsâ words can only end in a vowel. If a word ends in a consonant, it can only ever be Malumay or Mabilis.

In standard writing, you won't see the accent marks (´, `, ^). You will need to use context to know which word is being used. However, these sounds affect how you add suffixes like in -in verbs or -an verbs. First, stress typically moves one syllable to the right when a suffix is added (e.g., súlat becomes sulátin). For words that already have stress on the last syllable (Mabilis or Maragsa), the stress moves onto the suffix itself (e.g., basâ becomes basaín). Second, linguistically, the glottal stop acts like a consonant. If a word ends in a vowel without a glottal stop, an 'h' is inserted to separate the vowels (e.g., bása becomes basáhin). If the word has a glottal stop, no 'h' is needed because the suffix is already following a consonant sound, and the glottal stop moves to become the onset of the suffix syllable. This is simply spelled basain without any hyphens.

Other Affixation Rules:

• Hyphen Rule for Glottal Stops: When a prefix ending in a consonant is attached to a root word starting with a vowel (which actually begins with a glottal stop), a hyphen is used to represent the glottal stop (e.g., pag- + ibig = pag-ibig). Without the hyphen, it would be pronounced pa-gi-big.
• Vowel Syncope: Sometimes, the unstressed vowel in the final syllable of the root drops out when a suffix is added (e.g., tíkim + -an becomes tikmán).
• 'O' to 'U' Shift: If the root word ends in 'o', it changes to 'u' when a suffix is added (e.g., lutò becomes lutuín).