title: Match "After" if it doesn't have an an -ing word after it
body: <p>I want to match <code>After</code> if there isn't an <code>-ing</code> word after it (and before a comma). So there shouldn't be an <code>-ing</code> word between <code>After</code> and the comma.</p>
  <p>Desired match (<strong>bold</strong>):</p>
  <blockquote>
  <p>After sitting down, he began to talk.</p>
  <p>After finally sitting down, he began to talk.</p>
  <p><strong>After he sat down,</strong> he began to talk.</p>
  </blockquote>
  <p>I thought this regex would do it:</p>
  <pre><code>\bAfter\b.*(?!\w+ing)+,
  </code></pre>
  <p>But it's also matching After if there isn't an <code>-ing</code> word after it:</p>
  <blockquote>
  <p><strong>After sitting down,</strong> he began to talk.</p>
  <p><strong>After finally sitting down,</strong> he began to talk.</p>
  <p><strong>After he sat down,</strong> he began to talk.</p>
  </blockquote>
  <p><a href="https://regexr.com/683bv" rel="nofollow noreferrer">https://regexr.com/683bv</a></p>
  <p>Why is this and how to fix it?</p>