"How to say '19' in English?"
The number "19" in English is pronounced as "one nine". It is a numerical expression that represents the quantity or value of the digit 1 followed by the digit 9. In written language, it is typically represented using the Arabic numeral system, which consists of a single digit for each place value from 0 to 9. Therefore, "19" can be written as "19" or "19", depending on its position in a sentence or calculation.