In前面可以加am,可以直接翻译成发现我自己
I find myself in an embarrasing situation.
我发现自己处于一种尴尬的境地。
I主 find谓 myself宾 in an embarrasing situation宾补.
不能在介词前加am或is,因为myself是不能做句子主语的。
如果变为宾语从句,则应该说
I found I was in an embarrasing situation.
find oneself in...发现自己(不知不觉)处于……
When he woke up, he found himself in hospital.