They are fine to use. It just means they began to sprout. You should use them fairly soon or you can plant them. The green tops are very nice in homemade chicken soup, like green onion.

Thanks B, I’ll be putting great numbers in the garlic soup I’m making this weekend so they won’t last long.

The green parts are much more bitter than the rest of the bulb - you may not notice it in soup, but its usually recommended to remove the green part when using for cooking.

Thanks B, fortunately I have been cutting these off.