«Parents»
Grandfather - is my mother’s/ father’s father.
Grandmother - is my mother’s/ father’s mother.
Father and mother are my parents.
grandfather ['græn(d)ˌfɑːðə] - дедушка
grandmother ['græn(d)ˌmʌðə] - бабушка
father ['fɑːðə] - отец
mother ['mʌðə] - мать