kelkajn, some, several; kelke da…, some. Ex.: kelkaj personoj, some persons, several persons; kelke da libroj, some (quantity of) books.
alia(n), another, other; aliaj(n), others. Ex.: ili parolis unu al alia, they spoke to one another; ni parolis unu al la alia, we spoke to each other; unu aŭ la alia taŭgos, either (one or the other) will do; nek unu nek la alia konvenas, neither (one nor the other) is suitable.
ambaŭ (invariable), both. Ex.: ambaŭ venis, both came; mi konas ambaŭ fratojn, I know both brothers; mi vidis ilin ambaŭ, I saw both of them; mi ŝatas ambaŭ, I like both.
The Verb.
Tenses.
The Verb in Esperanto has three main Tenses—the Present, Past, and Future. These are denoted by means of the verbal endings -as, -is, and -os. Thus, from the root vid, see, are formed:
| Present. | Past. | Future. |
|---|---|---|
| mi vidas, I see | mi vidis, I saw | mi vidos, I shall see |
Moods.
Every Esperanto verb has three Moods—the Conditional, the Imperative, and the Infinitive, which are formed respectively by means of the endings -us, -u, and -i. Thus: