noun
s-stem irregular verb conjugation
A grammatical term referring to the irregular conjugation pattern of the verb する (suru) and its compounds. The only verb in this class is する, which has unique forms such as し (shi), せ (se), and さ (sa) in its stem.
「する」はサ行変格活用の唯一の動詞です。
"Suru" is the only verb with s-stem irregular conjugation.
サ行変格活用では、未然形に「し」「せ」「さ」があります。
In s-stem irregular conjugation, the irrealis forms include "shi," "se," and "sa."