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

[code]

    辞書形 = dictionary form
    命令形 = imperative form
    可能形 = potential form
    
[/code]

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 **進行形** （しんこうけい）. Every middle school students knows this term (they learn
it in _English_ classes).

By the way, I doubt there is a special 進行形 conjugation in Japanese. This
concept is expressed in Japanese by simply using a [subsidiary
verb](https://japanese.stackexchange.com/q/18952/5010) いる, preceded by て or で,
preceded by so-called "te-form" of a verb. The "te-form" is known as one of
the 連用形 to Japanese students who learn Japanese grammar at middle school.




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

By the way, I doubt there is a special 進行形 conjugation in Japanese. This
concept is expressed in Japanese by simply using a [subsidiary
verb](https://japanese.stackexchange.com/q/18952/5010) いる, preceded by て or で,
preceded by so-called "te-form" of a verb. The "te-form" is known as one of
the 連用形 to Japanese students who learn Japanese grammar at middle school.

