Here are three ways to use an introductory comma:
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After a subordinate clause: When a sentence begins with a subordinate clause, a comma is used after the clause to separate it from the main clause.
- Example: "Although it was raining, we decided to go for a walk."
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After an interjection: When an interjection is used at the beginning of a sentence, a comma follows it.
- Example: "Wow, that was an amazing performance!"
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After an adverb: An introductory adverb can be followed by a comma to separate it from the main clause.
- Example: "Quickly, she finished her homework."
These uses help clarify the structure of sentences and improve readability.