When to Place a Comma Before 'For'
As a preposition, do not place a comma in front of "for" unless using a particular sentence structure where commas are required.
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3 min read
When to Use a Comma Before 'Yet'
If the coordinating conjunction "yet" introduces an independent clause, place a comma in front of it.
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2 min read
Comma Usage Before 'Nor'
Place a comma before "nor" to join two independent clauses. Do not use it to join two subjects, two objects, or two verbs.
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2 min read
Subordinating Conjunctions And Comma Usage
When starting a sentence with a subordinating conjunction, use a comma to separate both clauses. In mid-sentence, the comma is unnecessary.
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3 min read
Comma Usage Before 'If Not'
When using "if not" as a conditional clause (for things that will possibily happen), add a comma after "if not" at the start of a sentence.
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3 min read
Comma Use Before 'As explained', 'As said', 'As stated', etc.
In general, use commas to set off clauses, phrases, or expressions that are introduced by "as explained", "as said", "as commented", "as declared", "as stated", or similar terms.
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3 min read
Comma Use with 'If necessary', 'If required', 'When needed', etc.
At the start of a sentence, use a comma after "if necessary", "if needed", "when required", "where needed", etc. Normally, we don't need a comma before "if necessary", "when needed", etc. in mid-sentence or at the end of the sentence.
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3 min read
Commas With 'Whether'
In the middle of a sentence, we do not typically use a comma before or after "whether".
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2 min read
Commas With 'Until'
If "until" or "till" comes at the start of the sentence, use a comma after the clause introduced by "until"—a clause is a group of words that contains a subject and a verb.
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2 min read