It's a type of function word in Tagalog that connects a noun to another word, usually a modifier or a verb.
Here are some examples:
* "ng" - the most common pang-angkop, used to connect a noun to a modifier (adjective) or verb:
* *ang malaking bahay* (the big house)
* *kumain ng prutas* (ate some fruit)
* "na" - used to connect a noun to a modifier (adjective) or verb, often emphasizing the quality of the noun:
* *ang magandang babae na nakita ko* (the beautiful woman that I saw)
* *bumili na siya ng damit* (he already bought clothes)
* "ni" - used to connect a noun to a verb that signifies possession or action:
* *ang libro ni Juan* (Juan's book)
* *binasa ni Maria ang libro* (Maria read the book)
Pang-angkop plays a crucial role in Tagalog grammar, helping to create clear and grammatical sentences.