at the ball? "Everybody who" had been invited was there, "nobody" was
absent. "Somebody, whom" I myself do not know, came with "that person
who" visited you yesterday.

It will be seen from these examples that the words beginning with
"K" either "ask questions" or "refer" to some person or thing before
mentioned. Those beginning with "T" point to a "definite" time, place,
etc. Those with "Cx" signify "each" or "every", and in the plural "all".
Those without a letter prefixed are "indefinite", meaning some or any;
and those with "nen-" are "negative", meaning "no, none".

The words ending in "ia" and those in "iu" can take the plural "j" and
accusative "n".

The words in "io" take "n", but the sense does not permit of their
taking "j".

The words in "ie" take the "n" denoting direction.

The word "cxi", signifying nearness, is used with the "T" series (words
meaning "that"), to denote the one near "i.e., this", as "Tio cxi", this
thing; "Tiu cxi", this person; "Tie cxi", or, "cxi tie", here, etc.

The word "ajn", ever, is used with the "K" series to give a more
inclusive and wider meaning, as "Kio ajn", whatever; "Kiu ajn", whoever;
"Kiam ajn", whenever; "Kiom ajn", however much.

Comparisons of equality are made with the words--

"tiel ... kiel", as Vi estas "tiel" forta, "kiel" mi, You are "as"