The word "to" can be a pronoun or an adjective. As a demonstrative pronoun, it is not declined and can mean "it " or even "they". As a demonstrative adjective, it is a form of "ten" (ten/ta/to etc.) and means "the" or "that" or "those". *
To say "this", you can add indeclinable -hle to get tenhle/tahle/tohle, etc. In formal written Czech, you add -to instead of -hle to get tento/tato/toto etc. with the same meaning, "this".
*For a more emphatic that/those, used to point out things that are physically distant from the speaker ("that there"), you add either -tam or tamhle in front of ten/ta/to to get tamten/tamta/tamto or tamhleten/tamhleta/tamhleto. For example:
Tam(hle) ta kniha není mots dobrá = That book (over there) is not very good.
Just to make sure I understand the usage of tebe, it's the informal pronoun to use after a preposition in second person for the Accusative and Genitive case and it can be used outside of 2nd position, but when used in 2nd position it's for emphasis? Or did I conflate a few different rules with each other? Thanks mods!