je te cases
je te presente ma femme, je vous presente mon fils. what does it mean with te and vous in that sentence, why it must te or vous and in which case we use this patern?.......thanks

Question

Answer

Bonjour

"Je te présente..." means "I present to you..." It is singular
"Je vous présente..."  means "I present to both of you..." It is plurial or polite way.

Answer

Je te présente (informal or familiar) = I introduce to you.
'te' here indicates that I am introducing to 'you'. Introducing not to him/her/us/them.
Je vous présente (formal or plural) = I introduce to you.

Answer

The "te" or "vous" is used to tell wich person you are currently introducing your wife or son to. In "je te presente ma femme", the "te" is the "to you" in "I introduce my wife to you" and the "vous" is the "to you" in "I introduce my son to you"