I've come across a kinda weird structure and can't figure it out in terms of grammars I know. This is the sentence:
Although can not totally independent of surrounding temperature, Amphibians do exercise some control over their body temperature through some mechanisms.
As far as I know, in some cases, we can remove subj+to be verb, like "although rich, he looks poor".
Or we can remove the subject in other forms, like "although can cause some problems, I'll continue what I've been doing".
My question is whether or not we can remove "to be" after "can" in such a structure? For example:
Although can be disappointed by my behaviors
although can disappointed by my behaviors
Anything else regarding the main sentence would be appreciated.