morphology - Long & complicated verb forms? ( Vstem-causitive-passive-aspect-desiderative-NEG-tense ) 行かせられ続け得 たくなかった (?)

Many of the Jp-related posts in the [Lingustics] SE are very advanced.

For example ----

https://linguistics.stackexchange.com/questions/2319/what-is-the-maximum-number-of-forms-a-modern-japanese-verb-can-take

(1)　Vstem-causitive-passive-aspect-desiderative-NEG-tense

All the possibilities are not, of course, exploited in each expression, but the following illustrates some of the lengthy but commonly observed forms:

• 行かせられない　'go'-CAUS-POTEN-NEG-PRES

• 行かせられたくない　'go'-CAUS-PASS-DESI-NEG-PRES

• 歩かせ続けたい　'walk'-CAUS-CONT-DESI-PRES

What are some very long & complicated verb forms?

行かせられない　

行かせられ得ない　

行かせられ続けたくない　

行かせられ続け得たくない　(?)

行かせられ続け得たくなかった　(?)

( 得難かった )

Are there well-known examples?