This is the snippet of an email from an American friend of mine.I am just home from work, having gotten off actually a bit early tonight - before 12:30am! In this message, I really am noticing how good your English is. You write very well - and I should know, given that I'm an editor!
- Why did my friend say "I should know"? I don't understand the usage of "I should know".
- What does "given that" refer to? Does it refer to "You were given that info- I'm an editor." ?
Thank you!
Because he is an editor, he should know (=you should expect him to know) what good English is.
'I should know' suggests "It is normal for people like me to know".
'Given that' means something like, "Considering that, bearing in mind that".
Your correspondent is saying that his opinion of your writing is not just empty words - he is qualified to give an objective opinion.
Hello SoothingDave and Fivejedjon,
Thank you very much for your help. I've understood.