• berenstain,
• enstein,
• bernstien,
• berenstein,
• barnstein,
• berstein,
• bernstine,
• burnstein,
• vernstein,
• nernstein,
• hernstein,
• gernstein,
• bwrnstein,
• bsrnstein,
• bdrnstein,
• bernsteinn,
• bernstean,
• Bersten,
• gernestein,
• beraskal

• behring,
• Bernice,
• berens,
• Berneice,
• behrens,
• bornstein,
• bearing,
• bronstein,
• bearing rein,
• bernas.

The plural form of "bernstein" is "bernsteins".

The singular form of the word "Bernstein" is "Bernstein". It remains the same in both singular and plural forms.