what is "progressive form" in japanese? I am making a Japanese verb conjugation app and can not seem to find the Japanese equivalent of "Progressive Form" For example = dictionary form = imperative form = potential form etc. what is "progressive form" in japanese? What term is used by Japanese textbooks?

The Japanese term to refer to _English_ progressive form (eg "I am sailing") is **** . Every middle school students knows this term (they learn it in _English_ classes).

By the way, I doubt there is a special conjugation in Japanese. This concept is expressed in Japanese by simply using a subsidiary verb , preceded by or , preceded by so-called "te-form" of a verb. The "te-form" is known as one of the to Japanese students who learn Japanese grammar at middle school.