Through their guidance and love, they have changed me in many ways.

Is the above sentence grammatically correct?

Thanks!

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3 answers

I wasn't sure if the comma should be there or not...
Yes. Your comma is correct. A fairly long prepositional phrase that begins a sentence is usually set off with a comma. Commas are used to clarify the sentence -- and this sentence is certainly easier to read with the comma.
Thank you!

:]