Kies plumon vi uzas? = Whose pen are you using?
La domo, kies tegmenton vi vidas, apartenas al mia patro = The house the roof of which you see belongs to my father.
El kies ĉiuj paŝoj, oni povas konkludi, ke ili estas lacaj = From all of whose steps we can conclude that they are tired.
Tiu libro estas tre malpura, kies ajn ĝi estas = That book is very dirty, whosesoever it is.
Ties opinio ne multe valoras = That one’s opinion is not worth much.
Mi neniam sekvas ties konsilon = I never take (follow) that one’s (his, her, their) advice.
N.B.—Be careful not to use kies for "of which," when these words do not mean possession. We cannot say La afero kies ni parolis for "The affair of which we spoke"; we must say La afero, pri kiu ni parolis.
155. Series ending in O (thing (not specified) indefinite), substantival or pronominal.
- Io = something.
- Io ajn, anything (whatever).
- Ĉio = everything, all things, all.
- Kio = what (thing), which.
- Nenio = nothing, not any thing.
- Tio = that (thing). Ĉi tio or tio ĉi = this (thing).
Examples.—Kio estas tio, kion vi skribas? = What is that (or, that which) you are writing?