Now that we have seen how to take an Active Verb Base and add Aspect
Suffixes to create a Verb Stem, we turn to the Pronominal Prefixes.  It
turns out that we can divide Active Verbs into two classes depending on
what types of Pronominal Prefixes they take.  The two types are called
Switch Active Verbs and Fixed Active Verbs.
 

10.1. Switch Active Verbs

The vast majority of Active Verbs fall into the category of Switch
Active Verbs.  Switch Active Verbs use Agent Pronominal Prefixes with
their Punctual and Habitual stems, but switch to using Patient
Pronominal Prefixes with their Stative Stems.

For example, the Switch Active Verb Base -yëht- "hit something", has the
following three Stem Forms.

   Punctual Stem   -yët
   Habitual Stem   -yëtha'
   Stative Stem    -yëhtö

Since this Verb Base starts with a -y-, it could be either a C-Stem
Class or an L-Stem Class Verb Base.  As it turns out, it's a C-Stem Verb
Base.  Now, since it's a Switch Active Verb Base, we know that it must
take Agent Pronominal Prefixes with both its Punctual and Habitual stems
-- and, more specifically, C-Stem Agent Pronominal Prefixes.  The table
below shows the Habitual forms for this verb.  (Since the -h- in the
Verb Base drops out in the Habitual stem, we'll put it in parentheses).

   k-    -yë(h)t-   -ha'   kyëtha'    I hit it
   s-    -yë(h)t-   -ha'   syëtha'    you hit it
   ha-   -yë(h)t-   -ha'   hayëtha'   he hits it
   ye-   -yë(h)t-   -ha'   yeyëtha'   she hits it
   ka-   -yë(h)t-   -ha'   kayëtha'   it hits it

However, with the Stative stem, the C-Stem Patient Pronominal Prefixes are used.

   ak-   -yëht-   -ö   akyëhtö   I've hit it
   sa-   -yëht-   -ö   sayëhtö   you've hit it
   hu-   -yëht-   -ö   huyëhtö   he's hit it
   ku-   -yëht-   -ö   kuyëhtö   she's hit it
   u-    -yëht-   -ö   uyëhtö    it's hit it
 

10.2. Fixed Active Verbs

A much smaller number of Active Verbs fall into the Fixed Active
category.  These verbs are in a sense simpler, since they don't change
the type of Pronominal Prefix they take.  Rather, they take Patient
Pronominal Prefixes with all three of their stems, the Punctual,
Habitual and Stative.

For example, the Fixed Active Verb Base -tukast- "hear of something",
has the following three Stem Forms.

   Punctual Stem   -túkas
   Habitual Stem   -tukastha'
   Stative Stem    -tukastö

Since this Verb Base starts with a -t-, we know that it's a C-Stem Verb Base.

Whereas the Switch Active Verbs take Agent Pronominal Prefixes with
their Punctual and Habitual stems, Fixed Active Verbs take Patient
Pronominal Prefixes.  The table below shows the Habitual forms for this
Verb.

   ak-   -tukast-   -ha'   aktukastha'   I hear of it
   sa-   -tukast-   -ha'   satukastha'   you hear of it
   hu-   -tukast-   -ha'   hutukastha'   he hears of it
   ku-   -tukast-   -ha'   kutukastha'   she hears of it
   u-    -tukast-   -ha'   utukastha'    it hears of it

In the Stative Aspect, the same Patient Pronominal Prefixes are used
again.

   ak-   -tukast-   -ö   aktuakstö   I've heard of it
   sa-   -tukast-   -ö   satuakstö   you've heard of it
   hu-   -tukast-   -ö   hutuakstö   he's heard of it
   ku-   -tukast-   -ö   kutuakstö   she's heard of it
   u-    -tukast-   -ö   utuakstö    it's heard of it