The relationship term is usually hyphenated "great-grandchildren" (grandchildren's kids).
Step-great-grandchildren.
Since "grandchildren" is already plural, the spelling would have to be the possessive form, which is grandchildren's (e.g. she saved all of her grandchildren's school photos).
nietosuse nietos for masculine, nietas for feminine, nietos for mixed
Yes, Jimmy Swaggart does have grandchildren and great grandchildren. As of May 2014, he has 3 grandchildren and 6 great grandchildren.
The common ancestor is your parents. Your children and your sister's children are first cousins. Your grandchildren and your sister's grandchildren are second cousins. Your great-grandchildren and your sister's great-grandchildren are third cousins.
Singular; Grandchild Singular possessive ; Grandchild's Plural ; Grandchildren Plural possessive ; Grandchildren's
They're step-grandchildren.
HE HAS 5 GRANDCHILDREN
HE HAS 5 GRANDCHILDREN
The correct way to hyphenate "great grandchildren" is "great-grandchildren." The hyphen is used to connect "great" and "grandchildren" to indicate that the term refers to the grandchildren of one's children, rather than just grandchildren in general.
Queen Elizabeth has 8 grandchildren and 5 great-grandchildren.
Great-grandchildren