* "Literary forms" is plural: The sentence needs a plural verb to agree with "forms."
* "Use" should be "used": The sentence needs the past participle form of the verb "to use" since it's describing a state of being.
* "Are" is unnecessary: The sentence is already clear without the word "are."
Here are some corrected versions:
* "Literary forms from our regions are used correctly."
* "Literary forms from our regions are used with correct grammar."
* "The literary forms from our region use correct grammar." (If you are referring to the forms themselves, this is a more accurate way to say it)
Let me know if you'd like help with any other sentences!