Je le sais de nouveau is to say "I know again".
In English, the meaning of "je ne sais pas qui je suis" means "I don't know who I am."
"Je sais" means "I know" in English.
"I don't know what" is an English equivalent of the French phrase Je ne sais quoi. The pronunciation will be "zhuhn seh kwa" in French.
"OK, OK, I know!" "je sais" = "I know" In this context, "bon" means "OK" (literally "well")
"Je ne sais quoi" is a phrase often used in English to describe something that cannot be described with words, eg. someone's intelligence. The grammar would be wrong when you are speaking French: "Je ne sais pas quoi" would be more correct, but when you are using the phrase in English, "je ne sais quoi" is fine.
I know that you are
When will I see you again? Quand vous reverrai-je?
'can't wait to feel you again'
"Je sais" in French means "I know" in English.
Je ne sais pas
I want to dream again
"[do] you know who I am?"