THE ACCUSATIVE CASE.
23. The person or thing acted upon is called the direct object of a transitive verb, and is given the ending -n. This is called the accusative ending; and the word to which it is attached is said to be in the accusative case:
La viro havas seĝon, the man has a chair.
La knabo trovas florojn, the boy finds flowers.
The ending -n follows the ending -j, if the word to be put in the accusative case is in the plural number.
24. An attributive adjective modifying a noun in the accusative case is made to agree in case, by addition of the same accusative ending -n. This prevents any doubt as to which of two or more nouns in a sentence is modified by the adjective, and permits of variation in the order of the words:
La knabo trovas belan floron, the boy finds a beautiful flower.
Florojn belajn la viro havas, the man has beautiful flowers.
La viro havas grandan seĝon, the man has a large chair.
Ruĝan rozon la knabo havas, the boy has a red rose.
25. A predicate adjective or noun (19) is never in the accusative case, nor is the accusative ending ever attached to the article, which is invariable as stated in 18.
THE CONJUNCTION KAJ.
26. In the expression both ... and ..., the conjunction kaj is used for both words, being merely repeated:
La viro kaj marŝas kaj kuras, the man both walks and runs.
La ĉevalo estas kaj granda kaj forta, the horse is both large and strong.
La knabo havas kaj rozojn kaj violojn, the boy has both roses and violets.
Kaj la knabo kaj la viro estas altaj, both the boy and the man are tall.