κρυσταλλoς	singular, nominative	singular, nominative
	κρυσταλλου	singular, genitive	singular, genitive
	κρυσταλλo	singular, accusative	singular, accusative
	κρυσταλλε	singular, vocative	singular, vocative
	κρυσταλλοι	plural, nominative	plural, nominative
	κρυσταλλων	plural, genitive	plural, genitive
	κρυσταλλους	plural, accusative	plural, accusative
	κρυσταλλοι	plural, vocative	plural, vocative