That's because not every single line is perfect iambic pentameter. Line after line of perfect meter ends up sounding more like a nursery rhyme than poetry, so poets (and playwrights) will play with the meter to emphasize certain words. Let's skip back to one of the non-perfect lines in the Prologue:
Hull is a town in Plymouth County, Massachusetts, United States, located on a peninsula at the southern edge of Boston Harbor. Its population was 10,293 at the 2010 census. Hull is the smallest town by land area in Plymouth County and the fourth smallest in the state.
Hull House was a settlement house in the United States that was co-founded in 1889 by Jane Addams and Ellen Gates Starr.Located in the Near West Side of Chicago, Illinois, Hull House (named for the home's first owner) opened its doors to recently arrived European immigrants.By 1911, Hull House had grown to 13 buildings. In 1912 the Hull House complex was completed with the addition of a summer camp, the Bowen Country Club.ull House was one of the four original members to be listed on both the Chicago Registered Historic Places and the National Register of Historic Places list (along with Chicago Pile-1, Robie House & Lorado Taft Midway Studios).