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QUICK ANSWER
"Who" is a form of "who", a pronoun which is often translated as "quién". "Indeed" is an adverb which is often translated as "ciertamente". Learn more about the difference between "indeed" and "who" below.
indeed()
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
1. (truly)
a. ciertamente
The formal ball was indeed a very classy event.El baile de gala ciertamente fue un evento muy elegante.
who()
A pronoun is a word that stands in for a noun (e.g., she).
a. quién
Hello? Who is calling?¿Hola? ¿Quién llama?
I don't know who he is, but he looks a lot like my brother.No sé quién es, pero se parece mucho a mi hermano.
2. (relative)
