Final answer:
In 'Sir Gawain and the Green Knight', usage can make the poem less rhythmic if the word choice doesn't align with the intended rhythm.
Step-by-step explanation:
In 'Sir Gawain and the Green Knight', usage can make the poem less rhythmic. The poem uses a complex pattern of rhyme and alliteration to create rhythm and sound effects that enhance the meaning and mood of the poem. However, if the usage or word choice in the poem doesn't align with the intended rhythm, it can disrupt the overall rhythmic flow. For example, if a word is stressed in a way that doesn't fit the established rhythm, it can make the poem sound less rhythmic.