mang-/man-/mam-

Nasal Assimilation

Level 2

Nasal assimilation is a morphophonemic change where the final 'ng' of the mang- prefix (and its relatives like pang-) changes to 'm' or 'n' to match the following sound, often causing the root's first letter to disappear.

How It Works

Nasal assimilation and substitution are key features of Filipino morphology. They follow specific rules based on the point of articulation of the root's first consonant:

  • mam- (Labial): Used before p and b. The initial p is usually deleted (Nasal Substitution). The initial b is frequently retained (Nasal Assimilation, e.g., mambola), though it drops in some high-frequency words (e.g., mang- + bili → mamili).
  • man- (Alveolar): Used before t, d, s, l, r, and n. The initial t and s are usually deleted. While d, l, and r are typically retained (e.g., manligaw), d is deleted in some high-frequency words (e.g., mang- + dalangin → manalangin). For roots starting with n, the prefix becomes man-, but conventionally only one 'n' is written (e.g., mang- + nood → manood).
  • mang- (Velar/Vowel): Used before k, g, h, ng, w, y, and vowels. The initial k is usually deleted. For roots starting with ng, the prefix remains mang-, but conventionally only one 'ng' is written (e.g., mang- + nginig → manginig; mang- + ngahas → mangahas). For roots starting with a vowel, a hyphen is often used (e.g., mang-akit), but many common lexicalized verbs drop the hyphen and glottal stop entirely (e.g., mangisda, manganak).
  • Roots starting with m: The prefix remains mang- (e.g., mang- + mura → mangmura) rather than becoming mam-, to avoid confusion with ma- verbs.

When conjugating these verbs for the progressive aspect or contemplated aspect, first-syllable reduplication depends on the process. For Nasal Substitution (where the root consonant is deleted), reduplication involves the assimilated nasal plus the first vowel of the root (e.g., ma- + mi + mili becomes mamimili). For Nasal Assimilation (where the root consonant is retained), the original root consonant is reduplicated (e.g., manligaw becomes manliligaw).

This pattern is primarily used for actor-focus verbs that imply professional or repeated actions. Note that while pan- and pam- follow these phonetic rules, they delete voiceless consonants (p, t, k, s) exactly like mang- does (e.g., pamunas, panulat), but tend to retain voiced consonants (like 'b') that mang- might otherwise delete.

Examples (4)

  1. Gusto kong mamili sa palengke.

    I want to go shopping at the market.

    Word by Word: Want I-linker to-shop at market.

    The root 'bili' (buy) starts with 'b', so 'mang-' becomes 'mam-' and the 'b' is deleted to form 'mamili'.

  2. Ang manunulat ay nagbabasa ng libro.

    The writer is reading a book.

    Word by Word: The writer is reading marker book.

    'Manunulat' (writer) comes from 'sulat' (write). The 's' is replaced by 'n' after the prefix 'mang-'. Notice how the assimilated syllable 'nu' is reduplicated, rather than the original 'su'.

  3. Mangunguha kami ng mga kabibe sa dagat.

    We will gather shells at the sea.

    Word by Word: Will-gather we marker plural shell at sea.

    The root 'kuha' (get/take) starts with 'k', so 'mang-' stays 'mang-' and the 'k' is deleted to form 'manguha'. For the contemplated aspect, the new assimilated syllable 'ngu' is reduplicated to form 'mangunguha'.

  4. Mahilig siyang mangisda tuwing Linggo.

    He/She likes to go fishing every Sunday.

    Word by Word: Fond he/she-linker to-fish every Sunday.

    For roots starting with vowels like 'isda' (fish), the prefix remains 'mang-' and the vowel is preserved.

Common Mistakes

  • Retaining the initial consonant when it should be deleted.

    Gusto kong mangbili ng prutas.
    Gusto kong mamili ng prutas.

    Learners often forget to delete the 'b' in 'bili'. In standard Filipino, 'mang- + bili' must become 'mamili'.

  • Using the wrong nasal allomorph or misspelling the resulting word.

    Mangnood tayo ng sine.
    Manood tayo ng sine.

    Learners might try to say 'mangnood' or write 'mannood'. When 'mang-' attaches to a root starting with 'n' like 'nood', it becomes 'man-'. However, Filipino spelling conventions dictate that the resulting double 'n' is simplified to a single 'n', resulting in 'manood'.

How It Connects

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mang-/man-/mam-Level 2Nasal Assimilation

Learn This First

To understand nasal assimilation in 'mang-' verbs, you first need to understand the concept of root words and affixes. You should also be familiar with the 'mang-' prefix itself and the Filipino alphabet, as the assimilation rules depend on the first letter of the root word.

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Patterns that build on this one.

Words in This Pattern

mang-mam-man-