First, there's the first verse, then the chorus, then the second, then the chorus, then the bridge, then the chorus, and most likely the chorus again. Sometimes, bridges are placed in between verses before the chorus begins.
the chorus line has two acts
Chorus Skating has 344 pages.
80
Many dictionaries have sentences with their definitions.
8-10 sentences
You count the number of sentences.
280 paragraphs but it depends on how many sentences are in each paragraph.
120
There are five sentences in five paragraphs.
How many lines are in a chorus completely depends on the song and what the songwriter wants to say. The number of lines in a chorus is sometimes fewer than the verses, sometimes the same, sometimes more. I've listened to songs with four words as the chorus, some have as many as ten lines.
In the Rick Moranis Film version, 3 young women acted as the chorus