Is it toi or Tu
I am learning French and on this site, it is telling me that you is Tu but from another source, it said that it translates to toi.
Have a look at this thread https://www.duolingo.com/comment/3343323/Tu-Toi-Vous-and-when-to-use-them
It is both. Reversio is great for this kind of thing.
On a une fantastique surprise pour toi. - We have a fantastic surprise for you.
English is the weird one here. If it was "he" the sentence would end with "him" but for "you" we still use "you".
"Tu" is a single subject only: Tu vas bien (You are fine)
If there is another subject, you have to use "toi":
- "Elle et toi allez bien" (She and you are fine)
After a preposition, "toi" is used:
- Je marche avec/sans/avant/après... toi (I walk with/without/before/after you).
In short questions/ answers, and after "c'est", "toi" is used:
- "Allô, c'est toi ?" (Hello, is that you?)
- "Qui va répondre ? Toi ?" (Who's going o answer? You?)
As an emphasis:
- Toi, tu aimes les glaces ? (Do you like ice-cream?)
In all other cases, where the second person singular pronoun is a direct or indirect object, "te" is used:
- Je te vois (I see you) - direct object
- Je te parle (I talk to you) - indirect object with the preposition "à" (to)