nietos
use nietos for masculine, nietas for feminine, nietos for mixed
The relationship term is usually hyphenated "great-grandchildren" (grandchildren's kids).
Step-great-grandchildren.
You say, "nietos." Arguably, it means grandsons, however, in Spanish, it's how they do "grandchildren," of mixed genders.
how do you spell lemon in spanish
Mis nietos.
"con" I think "con" is how you spell with in spanish.
flaco is how you spell skinny is spanish.
Heck with Spanish - can you spell it in English?
parece that is how you spell seems in spanish
"Thursday" in Spanish is "jueves". It is not capitalized.
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).
If you are asking how the word "spanish" is spelled, it would be Spanish. "How do you spell" in spanish is "¿Cómo se deletrea...?"