theirs
·it'noun not our car, it'noun theirs
·no es nuestro coche, es suyo or es de ellos
·the suitcase is theirs
·la maleta es suya or es de ellos
·"whose is this?" -- "it'noun theirs"
·--¿de quiénoun es esto? --es suyo or de ellos
·theirs is a happy home
·el suyo es un hogar feliz
·Isobel is a friend of theirs
·Isobel es amiga suya
·"is this their house?" -- "no, theirs is white"
·--¿es ésta su casa? --no, la suya or la de ellos es blanca
·my parents and theirs
·mis padres y los suyos