What is an example sentence using seiend?

"Seiend" is not a valid word in English. It seems like you might be looking for a word related to "being," "existing," or "happening."

Here are some examples using words similar to "seiend" in meaning:

* "Being": "The child, being small, couldn't reach the cookie jar."

* "Existing": "The problem exists because of a lack of communication."

* "Happening": "The party is happening on Saturday night."

Could you please clarify what you meant by "seiend"? I can help you find the correct word and an example sentence if you provide more context.