The couplet form supports the meaning of the lines in the quote," To the kings most excellent majesty, great God direct and guard him from on and from his head but every evil fly" -because it is completing the speakers thought. It is elaborating on it and therefore supports the sentence and brings it to completion.
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Conditional mood, but not sure
Answer:
A nickname is a name that only close people can call someone, or they prefer the nickname to be their public name.
Explanation: