Counters are used to express quantities for certain types of objects. Associated with each type of object is the name for that type of object when counting them. Some counters are exclusively used with Sino-Korean numbers. Some counters are used exclusively with Korean numbers when the number of objects is less than or equal to 20. Usually, if the number exceends 20, then a Sino-Korean number may be used. We give examples of each below.
Certain numbers are modified when used with a counter.
When counting objects the format is written [noun] + [number] + [counter] or [noun] + [number].
In formal cases, the format is [number] + [counter]의 + [noun].
Below we show examples of common counters.