Question

Which of the following adverbs is considered irregular in Spanish?

Amablemente

Bien

Rápidamente

Normalmente

Answer 1

In Spanish, the adverb considered irregular among the options you provided is "bien." Unlike the other adverbs, which typically follow a regular formation (e.g., adding "-mente" to the corresponding adjective), "bien" does not follow this pattern and is an irregular adverb.