Columbia subject headings:
German language--Study and teaching--Foreign speakers.
German language--Verb.
Language acquisition.
Metalanguage.
Harvard subject headings:
German language--Study and teaching--Foreign speakers.
German language--Verb.
Language acquisition.
Metalanguage.
Princeton subject headings:
German language--Deixis.
German language--Study and teaching--French speakers.
German language--Suffixes and prefixes.
German language--Verb.
Pragmatics.