You're most welcome, WB.
I've got another question:
In the Murder of Roger Ackroyd:
-'I don't see how that can well be'
Since DON'T is a negative element, the meaning of the sentence is IT CAN'T WELL BE, so it's possible.
The speaker isn't stating that STH CAN'T BE. The speaker is providing an opinion with I DON'T SEE meaning I CAN'T COMPREHEND HOW THAT CAN BE.
Qualifying the statement with I DON'T SEE makes it a good bit weaker than THAT CAN'T BE.
Then, am I correct in saying that when referring to a present particular situation about possibility we can't say?:
-That can well be XYZ....
The most important thing in determining language use is CONTEXT. The 2nd most important thing in determining language use is CONTEXT. The 3rd, 4th and 5th most important things in determining language use is CONTEXT, CONTEXT & CONTEXT.
Here's a made up scenario that illustrates that we can/could do what you suggested we couldn't/can't do depending on the CONTEXT.
Jack: Jimmy is hiking in the Rocky Mountains. He texted me that it is snowing there right now and it's the middle of June!!
Sam: That can well be
. That can even happen in July and August.
What Sam says, underlined, addresses "a present particular situation about possibility".