I was working when I heard one of my collegues who said on the phone that “should I be calling them?”
I did not know the context of the conversation but now remember it again, i do not understand what difference is between the two ways of saying as above?
Could you please set some light on that? Could someone advise what is situation to use “Should I be calling them”, please?
If you ask: Should I call them? you mean- ought I to call them/Is it right for me to call them? What you are asking is whether at some time it is really your duty to call them.
When you ask: Should I be calling them? there is an urgency in your question because you want someone to tell you whether you ought to do so right now/as soon as possible.