Menial means a task that you consider to be "beneath you." Here are some sentences. I refuse to take a menial job sweeping out the grocery store. That is such a menial task; I deserve a better job...
During the Great Depression, people were thankful to have work of any kind, no matter how menial.
New immigrants may find jobs as menial in hotels and restaurants.
When it has a subject, verb, punctuation, capitalization, a predicate, and a complete thought. A sentence is a sentence when it is handed down by a judge (or a magistrate).