how to say 1 sister in french is une soeur
"Sister" in French is "sœur."
To say "big sister" in French, you would say "grande sœur."
I help my sister is " j'aide ma soeur " in French.
Soeur.
A baby is called 'un bébé' in French.
Pene is cindy in french
Just say it.
Half-sister in French is "demi-sœur."
About my sister is a propos de ma soeur
une soeur
You can say "Ma sœur s'appelle" in French, which translates to "My sister's name is." After that, you can mention her actual name.