Interlingue/Appendix/Table of correlatives

As a lot of languages (including English, Esperanto...) Interlingue has a system of correlatives.

QU- (interrogative/relative) T- (demonstrative) ALQU- (undefined) NEQU- (negative) QU- -CUNC (indeterminate) X (collective)
-I (persons, nominative) qui (who) ti (this) alqui (someone) nequi (nobody) quicunc (anybody) omni (every, all)
-O (things) quo (what) to (that) alquo (something) nequo (nothing) quocunc (whatever) omno (all)
-EL (both) quel tel alquel nequel quelcunc chascun (each, all)
-AL (quality) qual (which, what a) tal alqual nequal qualcunc
-AM (way, mode) quam (as) tam (so) alquam nequam quamcunc (however)
-ANT (quantity) quant (how many, many) tant (so much) alquant (somewhat) nequant quantcunc
-ANDE (time) quande (when) tande (then) alquande nequande (never) quandecunc sempre (always, ever)
-U (place) u (where) ci / ta (here / there) alcu (somewhere) necu (nowhere) ucunc (anywhere) partu (everywhere)

Alcun and Necun are respectively the adjectives of Alquel and Nequel
There are other quantity adjectives, in increasing orderĀ : null < singul < poc < quelc < pluri < mult < mani < tot
There are also other types of pronounsĀ : altri (other) / ambi (both) / ceteri (remaining)

The -i series has an accusative form, whose ending is -em: quem, alquem
The -al series can be adverbialized with the -men ending: qualmen (how) talmen
The -el and -al series can take the plural ending: queles, quales