Sentence that is correctly punctuated with the semi colon is, "Sam likes to run marathons; he trains all year long."
When writing a sentence with a dependent clause that is connected to the independent clause, a semicolon is required. Semicolons, as opposed to commas, can be used to separate closely related ideas.
These concepts or interdependent clauses have a close connection with one another. A semicolon between two phrases indicates that they are of equal importance to one another. It's crucial to avoid overusing semicolons in a paragraph. One semicolon should be used just once each paragraph, according to the general consensus.
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