It compares an infant to the babe Apollo crawling on the shore of Delos: "Talis per litora reptans Improbus Ortygiae latus inclinabat Apollo.
Sed tu crudelis, crudelis tu magis Orpheu looks more like an imperfect anticipation than an imitation of Improbus ille puer crudelis tu quoque mater.
Or those melodious Verses in the eighth Eclogue: Sævus amor docuit natorum sanguine matrem Commaculare manus: crudelis tu quoque mater; Crudelis mater magis an puer improbus ille?
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "improbus" in a variety of sentences. We hope that you will now be able to make sentences using this word.