Christine et Michael pour toujours.
the same, Christine
Kristina is spelled Christine in French
You spell it the same, Michael Jackson.
Michel
That is the usual spelling of the male given name, Michael (French variant Michel).
Infinity.
Christine Krishnasami has written: 'For a spell'
you can spell it out
Just as you have : Infinity .
Michel
"How do you spell it in French?" is "Comment ça s'écrit en français?"
this is how you spell spelling in french: l'orthographe