Syntactic development; Morphological development; Morphologie (Spracherwerb) ; Syntax (Spracherwerb) ; Grammatical development ; Dual language acquisition; Bimodal language acquisition; Spracherwerb (biling.) ; Language acquisition (biling.) ; Bilingual language acquisition ; Verba copulativa; Copulative verbs; Copula ; Interference (synt.) ; Null subject; pro-drop; Subjectless clause ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English ; Chicano; Puertoricans; USA (span. Sprache in den) ; Mexican American Spanish; USA (Spanish language in the) ; Spanglish; Inglañol; Tex-Mex; Spanish in the USA
