Do is a helping verb, you is the subject, and know is the verb :-)
Answer:
I don't even know what class are you taking for crossword, so I find quizlet for you, that might will help:
https://quizlet.com/5061801/chapter-23-flash-cards/
Answer: Alliteration
Explanation:
An alliteration occurs when close or adjacent words in a sentence begin with the same letters or sounds. An example would be ''<em>Peter Piper picked a peck of pickled peppers</em>''.
The text in the question features an alliteration from the word pilgrims all the way to the word period as when read they sound similar. Some of the words also start with p.