Editorial note — Front matter (continued 2)
Reading edition
Substantive is the general name for nouns and pronouns, that is, for words which indicate persons, things, etc., and may be used as subject or object of a verb, complement of a preposition, etc.
The infinitive may be used with antaŭ ol if its subject is the same as the subject of the main verb. Otherwise the construction explained in 97 must be used.