[Swedish] Some questions about Swedish language



Hi everyone!
I'm learning some Swedish to read some scientific books written in that
language. I found this clause: "USA torde för närvarande härbärgera ung.
hälften half världens judar, där de framför allt bo i New York [...]". I
have some problems withthe word "torde" and with the verb "bo": why is it
infinitive? Shouldn't it be "bor"?
Thanks in advance.

.


Loading