Am 06.07.2017 um 21:07 schrieb SuStel:

There sure is an example against this:

I was talking abut canon phrases as an example.

How do you have an example sentence which proves you can't use -be' anywhere in an imperative? That's called proving a negative, which is quite an ironic phrase in this case.

-- 
SuStel
http://trimboli.name