Third person singular present tense of 'elapse'; indicates that time is passing or has gone by.
Standard conjugation of the verb 'elapse' following English grammar rules, maintaining the Latin root throughout the conjugation.
Even though 'elapse' is a single, specific word meaning time passes, we add 's' for third person singular—so 'three years elapses' is correct when time itself is the subject doing the elapsing.
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