Columbia subject headings:
English language--Grammar, Comparative--German.
English language--Infinitive.
English language--Modality.
German language--Grammar, Comparative--English.
German language--Infinitive.
German language--Modality.
Structural linguistics.
Harvard subject headings:
English language--Grammar, Comparative--German
English language--Infinitive
English language--Modality
German language--Grammar, Comparative--English.
German language--Infinitive.
German language--Modality.
Structural linguistics.
Princeton subject headings:
English language--Infinitive.
German language--Infinitive.
Linguistics.
Semantics.