vs
QUICK ANSWER
"When" is an adverb which is often translated as "cuándo", and "verb" is a noun which is often translated as "el verbo". Learn more about the difference between "when" and "verb" below.
when()
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
2. (relative)
verb()
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
