Why do you put a comma after luckily in sentence?

You don't always put a comma after "luckily." It depends on the sentence structure.

Here's why:

* "Luckily" as an introductory word: If "luckily" starts the sentence, it acts as an introductory phrase. Introductory phrases often need a comma after them.

* Example: Luckily, she had an umbrella.

* "Luckily" as an adverb: If "luckily" modifies a verb within the sentence, it's functioning as an adverb, and you usually don't need a comma.

* Example: She luckily had an umbrella.

Key Takeaway: The placement of the comma depends on the role of "luckily" in the sentence. If it's introducing the sentence, use a comma. If it's modifying a verb, you usually don't.