Catalexis was common in Greek and Latin meter, and also in ancient Sanskrit verse. Catalectic endings are particularly common where the rhythm of the verse is dactylic ( – u u ), trochaic ( – u ), or anapestic ( u u – ); they tend to be associated with the end of a strophe or period, so much so that it can almost be said that acatalectic forms cannot end a period. In classical verse, the final syllable of a line always counted as long, so that if a dactyl ( – u u ) is made catalectic, it becomes a spondee ( – – ).