GRADE 9 THIS IS, THESE ARE

ÉSTA - THIS (USED FOR ONE FEMININE ITEM OR ONE FEMALE)
eg. Ésta es Rihanna

ÉSTE- THIS (USED FOR ONE MASCULINE ITEM OR ONE MALE)
 eg Éste es Drake

ÉSTAS- THESE (USED FOR MORE THAN ONE FEMININE ITEM OR TWO OR MORE FEMALES)
eg Éstas son Beyoncé y Adele.

ÉSTOS- THESE (USED FOR  A COMBINATION OF MALE AND FEMALE OR MORE THAN ONE MALE)
eg Éstos son Asafa y Usain.