Nunc pueri in scholis ludunt; juvenes ridentur in foro; et, quod utroque turpius est, quod quisque perperam discit, in senectute confiteri non vult.
Aeneas Sylvius puts in a caveat against princes' courts, because there be tot formosi juvenes qui promittunt, so many brave suitors to tempt, &c.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "juvenes" in a variety of sentences. We hope that you will now be able to make sentences using this word.