Icelandic-English translations for er

AS
us
as
us
You’re not as tall as I amIts not as well made, but its twice as expensiveDo as I say!

I'm
us
when
uk
us
When will they arrive?Do you know when they arrived?I dont know when they arrived.
who
uk
us
Who is that? (direct questionI dont know who it is. (indirect questionI dont like what you did, but who am I to criticize you? Ive done worse.