Originally Posted by
Propp I read "Gulliver's Travels" and I've noticed that Swift sometimes uses this expresion, for example
"Upon the whole, the behaviour of these animals was so orderly and rational <...> that I at last concluded they must needs be magicians..."
Then I came across this in other writings, for example
We Must Needs Go Through Samaria
I understand, of course, more or less the meaning of this expression, as well as I presume it to be the old-fashioned one, but I'm still in doubt of its grammatical construction.
What do you think of it?
BTW, what's the difference between "colt and foal"; "nag and horses"?