The phrase "add punctuation" is correct and usable in written English.
You can use it when instructing someone to include punctuation marks in a sentence or text for clarity and correctness.
Example: "Please review the following sentence and add punctuation where necessary."
Alternatives: "insert punctuation" or "include punctuation".
When writing their names, they often add punctuation marks like colons or hyphens.
Add punctuation to these lines from "The Hydra," and Merwin sounds like his Noah action figure.
Whether or not we'll ever remember to add punctuation marks in the right places is, of course, another matter.
[Watch a demonstration of Swype on YouTube.com] While many smartphones have features that auto-complete words, correct typos on the fly and add punctuation, Mr. Kushler is aiming for the next level.
(I also dictate into Facebook Messenger, SMS, email, Chrome and other apps). I only have to fish out the keyboard to add punctuation, do some formatting or make corrections when necessary.
In "Alarippu," part of "In Praise of the Sabha," which reflected the blossoming of a flower, she darted from side to side, using the balls and the heels of her feet to add punctuation to the music's complicated rhythms.
The field even gets added punctuation per MARC conventions.
It added punctuation to his life and to an Age of Reason that was giving way to Romanticism.
It's contemporary, with buttermilk biscuit crumbles adding punctuation to a salad featuring a goat cheese gateau and a burnt-onion soubise, or sauce, enhancing the main course.
Duggan copied the ancient writing from microfilm, adding punctuation, quotation marks, and capitals, all of which are missing in the original text.
As Roderick Murray's lighting, something of a third character, keeps the conversation flowing — adding punctuation and depth to movement phrases — the viewer can't help but wonder: Where does one dancer begin and the other end?
