How do you write www at the beginning of a sentence?

You should generally avoid starting a sentence with "www" as it's considered grammatically incorrect and awkward.

Here's why:

* It's an abbreviation: "www" stands for "World Wide Web" and is not a complete word. It's best to use the full phrase or a different phrasing entirely.

* It's informal: Starting a sentence with an abbreviation can come across as casual and unprofessional.

* It's repetitive: Since you're likely referring to a website, starting with "www" might be redundant, as the URL is already understood to be a website.

Instead of starting with "www", consider these options:

* Use the full phrase: "The World Wide Web has become an integral part of our lives."

* Use a different starting phrase: "You can find more information about this topic on the website..."

* Avoid the website mention altogether: "Visit our website to learn more."

Remember, good writing is about clarity and flow. Avoid starting sentences with abbreviations like "www" to ensure your writing is both grammatically correct and easy to read.