30-2: el grande artista: the apocopated form gran, usual before initial consonants, is not favored before vowels.
30-3: siglo: world (lit. cycle, century). Cf. English use of secular.
30-4: por lo que: a preposition that logically divides lo que is regularly prefixed.
30-5: Llevaos: observe the dropping of final d when os is suffixed.
31-1: olvidado: oblivious. A number of past participles are employed with the value of present participial adjectives. Cf. divertido, amusing.