Here are some examples:
* Agree becomes disagree
* Able becomes disable
* Connect becomes disconnect
* Honest becomes dishonest
* Like becomes dislike
It's important to note that while "dis" is a common prefix for creating opposites, it doesn't always work for every word. There are exceptions, and some words with "dis" don't have a clear opposite meaning.
If you're unsure whether "dis" can be added to a word, it's best to consult a dictionary or online resource.