what is the meaning of "should never" and "should not" in this context?
There are one or two points about the case which would bear
discussion. One is that a man with so remarkable a name as Charles B.
Rosma should never have been traced, considering all the publicity
which the case acquired. This would certainly at the time have
appeared a formidable objection, but with our fuller knowledge we
appreciate how very difficult it is to get names correctly across. A
name apparently is a purely conventional thing, and as such very
different from an idea. Every practising Spiritualist has received
messages which were correct coupled with names which were mistaken. It
is possible that the real name was Ross, or possibly Rosmer, and that
this error prevented identification. Again, it is curious that he
should not have known that his body had been moved from the centre of the cellar to the wall, where it was eventually found. We can only
record the fact without attempting to explain it.
Best Answer
He should = He is supposed to
He shouldn't = He is not supposed to
He should have = He was supposed to
He shouldn't have = He was not supposed to
(the past tense of "should" is "should have")
Using "never" after "should" in negative statements is for emphasis , you can use "not" instead .
He should never have been traced = He was not supposed to be traced.
He should not have known = He was not supposed to know.