ipang-

The ipang- prefix is the primary way to indicate Pokus sa Gamit (Instrumental Focus). A helpful tip: the ipang- prefix is simply the object focus prefix i- attached to the instrumental noun prefix pang- (e.g., panglinis [cleaning tool] → ipanlinis [to use as a cleaning tool]).

1. Morphological Changes (Nasal Assimilation)
The final -ng in ipang- undergoes nasal assimilation based on the first letter of the root word:

• Ipam- (dropping or retaining consonant): Before p (e.g., punas [wipe] → ipamunas or ipampunas [use to wipe]). Note that in casual, modern Tagalog, speakers often retain the consonant.
• Ipam- (retaining consonant): Before b, the consonant is almost universally retained for true instrumental focus (e.g., bigay [give] → ipambigay [use to give], bili [buy] → ipambili [use to buy]). Dropping the 'b' usually changes the verb to a distributive focus instead.
• Ipan- (retaining consonant): Before d, l, r (e.g., linis [clean] → ipanlinis [use to clean]).
• Ipan- (dropping or retaining consonant): Before s, t (e.g., tali [tie] → ipanali or ipantali [use to tie]).
• Ipang-: Before vowels and other consonants. A hyphen is required before vowels (e.g., ahit [shave] → ipang-ahit [use to shave]). For roots starting with k, traditionally the 'k' always drops via nasal substitution (e.g., kuha [get/take] → ipanguha [use to get]), though retaining the 'k' (ipangkuha) is a common modern or casual variation.

2. Conjugation (Aspect)
This pattern follows aspect rather than tense. Crucially, the nasal assimilation (m/n/ng) established in the infinitive persists through all forms. For the progressive and contemplated aspects, reduplication applies either to the first syllable of the root (or assimilated root), or to the pa- of the prefix:

• Infinitive/Imperative: Ipam- / Ipan- / Ipang- + root (dropping the first consonant if required) (e.g., ipamutol [use to cut], ipanlinis [use to clean])
• Completed: Ipinam- / Ipinan- / Ipinang- + root (dropping the first consonant if required) (e.g., ipinamutol [used to cut], ipinang-ahit [used to shave])
• Progressive: Ipina- (if consonant drops) OR Ipinam- / Ipinan- / Ipinang- (if retained) + reduplicated first syllable of the root or assimilated root + the root (or assimilated root) OR Ipinapam- / Ipinapan- / Ipinapang- + root (dropping the first consonant if required) (e.g., ipinamumutol or ipinapamutol [using to cut], ipinanlilinis or ipinapanlinis [using to clean])
• Contemplated: Ipa- (if consonant drops) OR Ipam- / Ipan- / Ipang- (if retained) + reduplicated first syllable of the root or assimilated root + the root (or assimilated root) OR Ipapam- / Ipapan- / Ipapang- + root (dropping the first consonant if required) (e.g., ipamumutol or ipapamutol [will use to cut], ipanlilinis or ipapanlinis [will use to clean])

3. Sentence Structure
In an ipang- sentence, the instrument is the focus and takes the ang marker (or si/yung). The actor takes the non-focus ng (or ni) marker, and the object/patient takes the non-focus ng marker (or sa if it is definite, a specific location, or directional). For example: Ipinamutol ng karpintero ng kahoy ang lagari. (The carpenter used the saw to cut wood.)

4. Usage Nuance
While ipang- explicitly states that the object is being used as a tool or means to perform the action, the prefix i- is frequently used as a shortened, alternative prefix for instrumental focus in everyday speech (e.g., using ihiwa [use to slice] instead of ipanghiwa [use to slice]).