Columbia subject headings:
Harvard subject headings:
French language--Grammar, Comparative--German.
French language--Modality.
French language--Negatives.
French language--Verb.
German language--Grammar, Comparative--French.
German language--Modality.
German language--Negatives.
German language--Verb.
Princeton subject headings:
French language--Grammar, Comparative--German.
French language--Modality.
French language--Negatives.
French language--Verb.
German language--Grammar, Comparative--French.
German language--Modality.
German language--Negatives.
German language--Verb.