THE PREPOSITION INTER.
85. In English, the preposition "between" is used in reference to two persons or things, and "among" in reference to three or more. As the difference in meaning is not essential, Esperanto has but the one preposition inter to express both between and among:
Li sidas inter vi kaj mi, he is sitting between you and me.
Li sidas inter siaj amikoj, he is sitting among his friends.
La monato majo estas inter aprilo kaj junio, the month of May is between April and June.
Inter tiuj libroj estas tre interesa libro, among those books there is a very interesting book.
THE PREPOSITION PRO.
86. Cause or reason may be expressed not only by an adverb (78) or a clause (83), but also by use of the preposition pro, because of, on account of, for the sake of, for. It directs the thought away from the complement toward the action, feeling or state caused by it, or done in its interest or behalf:
La floroj velkas pro la seka vetero, the flowers wilt because of the dry weather.
Mi skribis la leteron pro vi, I wrote the letter for you (for your sake).
Pro tiuj nuboj mi timas ke pluvos, on account of those clouds I fear that it will rain.
Oni ŝatas ĉerizojn pro la dolĉa gusto, people like cherries because of the sweet taste.
PREPOSITIONS WITH ADVERBS AND OTHER PREPOSITIONS.
87. Prepositions may be used with adverbs or with prepositional phrases when the meaning permits:
La kato kuris el sub la tablo, the cat ran out-from under the table.
Li venos el tie, he will come out of there.
De nun li estos zorga, from now he will be careful.
Li staris dekstre de la vojo, he stood on the right of the road.
Mi iros for de ĉi tie, I shall go away from here.
Vocabulary.