"tomber" means "to fall"
je tombe amoureux, je tombe amoureuse
Je tombe pour lui
"I am falling for him": if the speaker is female, "je tombe amoureuse de lui". if the speaker is male, "je tombe amoureux de lui".
Mon anniversaire tombe un lundi. "The day of my birthday will be a monday" (sorry for my English, I'm french native)
tombe hors de l'amour
une tombe, (also called un tombeau)
Je pense que je tombe pour toi in French means "I think I am falling for you" in English.
mon anniversaire est le ... mon anniversaire tombe le ...
tomber is the French verb for 'to fall (down)' and 'la neige' means 'the snow' 'tombe la neige' is an expression meaning that you don't mind about something - that is, you won't worry as you can't prevent the snow from falling. It is often used in the sense of "I couldn't care less".
Mon anniversaire tombe le premier Avril
"Je tombe déjà amoureux de vous."
It means Did you ever fall?