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, UK, Information. City of Hull is located in NE England, on the north shore of the Humber estuary at the influx of the small Hull River.Its port is one of the chief outlets for the surrounding area, which is also accessible by rail. Hull is also one of the world's largest fishing ports.Hull was founded late in the 13th century by Edward I. Schools include the University of Hull, Endsleigh College and Kingston upon Hull College.ity of Hull is located in NE England, on the north shore of the Humber estuary at the influx of the small Hull River. Its port is one of the chief outlets for the surrounding area, which is also accessible by rail.