is it "je ne sais quoi" or "je ne sais pas quoi"? also is it "je ne sais pas or "je ne sais'?
does you still say it when you talk though?

Question

is it "je ne sais quoi" or "je ne sais pas quoi"? also is it "je ne sais pas or "je ne sais'?
does you still say it when you talk though?

Answer

Je ne sais pas quoi 
je ne sais pas

Answer

Nope, we don't use "Je ne sais quoi" nor "je ne sais" in a chat.
They aren't incorrect, but don't use them :)

Answer

Hi!

"Je ne sais quoi" and "Je ne sais" are quite literary, they shouldn't be used in a talk. You can read these expressions in old books.
   ex: "Je ne sais quoi faire. Je ne sais que lui dire."
         "Je ne sais s'il va revenir"

Nowadays you'll mostly find "Je ne sais quoi" used as a noun, so be careful.
 ex: Il a un je-ne-sais-quoi. (El tiene algo?)

So yeah, use "Je ne sais pas quoi" and "Je ne sais pas"!

Answer

je ne sais pas quoi

aurevoir

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