508 7-3 Basic Sentence Types Basic sentence types in Aymara have been analyzed and described by Hardman et al. (1975:3.425-458). De- fined by occurrences of the four basic sentence suffixes, they are as follows. (The order of the suffixes in each pair is not significant; the opposite order occurs also.) Questions Answer/Statement (-xa)/-ti (yes/no) (-xa)/-wa -sa/(-xa) (information) The present research has turned up sentences with the suffix -ka (possibly a reduced form of aka or uka) in place of -xa in the information question and in the answer/statement. A plain -ka statement also occurred. Schematically, the -ka sentence types may be written as Question Answer/Statements ~sa/(-ka) (-ka)/-wa ~ka/p (No example of a *(-ka)/-ti yes/no question occurred in the data, but it may be presumed to exist.) Examples: