Learn French: Voici le plat, je t'en sers tout de suite. - Here is the dish, I am serving you some of it right away.

t'en is a combination of two pronouns: te (to you) and en (some / of it). The e in te is dropped because en starts with a vowel sound, creating t'en. Together, they give the meaning "serving you some of it".

Why does t' come before en? Could I say j'en te sers?

No, you must stick to the strict French pronoun order. When you have multiple object pronouns before a verb, the pronouns me, te, se, nous, vous always come first. The pronoun en is always the very last pronoun in the sequence, so it has to be te followed by en.

How would this sentence change if I wanted to say "I am serving him some right away"?

You would say je lui en sers tout de suite. The indirect object pronoun lui (to him/her) replaces te, and it still comes directly before en.

In English, we might just say "I'll serve you right away." Do I really need en in French?