No. they didn't not know of Macbeth's plans. Some Suspisous come an go, most are never acted uppon.
The story is vary faint to me. I read it a while ago. I hope this helpes though.
You can answer man i will not take your thunder
After questioning Beowulf, the coast guard deems him a friend and worthy ally.
According to ( https://www.espressoenglish.net/100-common-english-adverbs/ ) I belive it's "up'' and "so"
For what about? Then it can vary in many different titles.