How do you use obstain in a sentence?

"Obstain" is not a real word in the English language. It is likely a misspelling of "obtain," which means to get or acquire something.

Here are some examples of how to use "obtain" in a sentence:

* She obtained a degree in law from Harvard University.

* The researcher was able to obtain funding for his project.

* It is not easy to obtain a visa to enter that country.

If you meant to use a different word, please provide more context or a definition of what you are trying to say.