Syntaktische Merkmale; Syntactic features; Full interpretation, principle of; Interpretierbarkeit (Grammatiktheorie) ; Interpretability (theory of grammar) ; Features (synt.) ; Optionality (theory of grammar) ; Grammatizität; Grammaticalness ; Functional category (second language acquisition) ; Funktionale Kategorie (Spracherwerb) ; Funktionale Kategorie (Zweitspracherwerb) ; Third language acquisition ; Transfer (second language acquisition) ; Transfer (Zweitspracherwerb) ; Cross-linguistic influence (second language acquisition) ; Interference (second language acquisition) ; Processability theory; Language comprehension (second language acquisition) ; Interference (synt.) ; Verb movement ; Wortstellung; Satzfolge; Serialisierung; Serialization; Word order ; Underspecification (synt.) ; German ; English