Do I need any commas in the sentence below? If you can, please explain your reasoning. Thanks!
"The listed effects will rarely if ever occur all at once but heavier dosages will increase the chances and are more likely to induce a full range of effects."
Top answer
Yes you need a comma after "once" to separate the two independent clauses.
— Anonymous
Yes you need a comma after "once" to separate the two independent clauses.
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