De Janet et de John
Jeannette would be the equivalent for the English first name Janet.
'John's house' is "la maison de John" in French.
Janet would be spelled "Jeannette" in French
Jeannette would be the French equivalent of Janet.
The name John in French is "Jean."
Cher John
You would say "Bonjour John, comment ça va ?" in French.
j'aime Jean (or John)
The correct French spelling for the name "Janet" is the same: "Janet." However, it is worth noting that in French-speaking contexts, the name might also be spelled as "Janette," which is a more common variation.
Evangile de Jean
"John Patrick, tu me manques"
John, fais attention aujourd'hui.