In everyday conversations we always use the following negative words:

nada - nothing, anything

nadie - no one, nobody

nunca - never

Let's look at some example sentences:

No, por el momento no me ha dado nada.
No, at the moment he/she hasn't given me anything.

No le dé a nadie un cheque en blanco.
Do not give anyone a blank check.

Nunca olviden la brújula.
Never forget the compass.

No señor, no me dijeron nada.
No Mr., they told me nothing.

Nadie entiende.
Nobody understands.