The main way is by using ~지만 after a verb stem, but there are other ways too which the video covers.
Remember to also check out the free PDF version of this lesson, with extra information and examples, on the YouTube PDFs page (link at top).
Learn Korean Ep. 65: “But”
And are you just starting to learn Korean, or want a solid review of the basics? Then my book "Korean Made Simple: A beginner's guide to learning the Korean language" is the book for you! You can check the book out on my site here, or find it directly through Amazon and most online retailers.
Or if you've already started learning Korean and want to take your skills to the next level, check out my second book in the series, "Korean Made Simple 2: The next step in learning the Korean language." You can check out the sequel here, or find it directly through Amazon and most online retailers.
-Billy