Part PIS furnishes patterns bearing at a time a prefix, an infix and a suffix.
Part PIS is composed of two sections: section d and section t.
But section t consists of two subsections: PIS-t1 look at
and PIS-t2: look at
Section d: this offers patterns consisting of two root consonants with a prefix plus an Infix and plus a suffix. Look at PIS-d
Section t: this offers patterns consisting of three root consonants plus a prefix and an infix and a suffix:
By the time Oham has begun its internet run (end of year 2009) part PIS consists of about 553 patterns: 234 in section PIS-d plus 222 in subsection PIS-t1 plus 111 in subsection PIS-t2.