Cameroon ; Sampling; Language corpus; Sprachkorpus; Datensammlung; Data collection; Textkorpus (method.) ; Text corpus (method.) ; Corpus linguistics ; F-LOB ; Worthäufigkeit; Häufigkeitsliste; Frequency list; Frequency (lex.) ; Word frequency ; Modal verb ; Evidentialität; Evidentiality; Narrativ; Narrative; Renarrativ; Quotativ; Quotative; Reportativ; Putativ; Putative; Präsumptiv; Presumptive; Source of information; Source of knowledge; Epistemic modality ; Africa (English language in) ; Afrika (engl. Sprache in) ; English in Africa