"he didn’t know how to behave himself" in Spanish

Summary

The Spanish translation for “he didn’t know how to behave himself” is Él no sabía cómo comportarse. The Spanish, Él no sabía cómo comportarse, can be broken down into 5 parts:"he" (él), "don’t" (no), "knew" (sabía), "how" (cómo) and "to behave" (comportarse).