John Masefield’s poem "Sea Fever” is written in a fixed poetic structure because the it keeps the last two lines of each stanza in a rhyme and not only that, but also in the first two lines.
This is a poem written by John Masefield, whose poem writtng is considered to glamorize the language with rhythmic constructions & compound resources that project a beautiful imagery.
Hence, these fixed structure appeared throughout the text in a masterful way and it was repeated several times, thereby, it was considered "a fixed" way to rhyme.
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