The sign post is in order, – if,
under
in
normal circumstanc[s|e]s, it fulfils its purpose.
      If I say to someone, as in ([6|7]8), :
Stand roughly there
Wait approximately here
”,
can't
may not
ˇdoesn't this explanation serve [function| work] perfectly? (And
can't
may not
every other ˇexplanation break down too?)