Sampling; Language corpus; Sprachkorpus; Datensammlung; Data collection; Textkorpus (method.) ; Text corpus (method.) ; Corpus linguistics ; CREA ; CORDE ; Frequency (morph.) ; Validity (method.) ; Evaluation criterion (method.) ; Sprachwandel (morph.) ; Language change (morph.) ; Morphological change ; Subjunctive ; Imperfekt; Imperfect; Imparfait; Preterite; Indefinido; Past tense ; Morphologie, kontrastive; Morphology, contrastive; Contrastive morphology ; Spanish ; Latin America (Spanish language in) ; Lateinamerika (span. Sprache in) ; Spanish in Latin America