Examples
I don't believe Santa Claus is imaginary.
Source: Tatoeba
Tom showed her the letter from Santa Claus.
Source: Tatoeba
Santa, I would like a girlfriend for my Christmas present.
Dear Santa, I want a girlfriend for Christmas.
Source: Tatoeba
As soon as you start misbehaving, Father Christmas will not come to see you.
Source: Tatoeba
I was nine years old when I asked my mom if Santa Claus really existed.
Source: Tatoeba
Children often send letters to Santa with their wishes.
Source: Tatoeba
You might get your papa to hire men to watch in all the chimneys on Christmas Eve to catch Santa Claus, but even if they did not see Santa Claus coming down, what would that prove? Nobody sees Santa Claus, but that is no sign that there is no Santa Claus.
Source: Tatoeba