Danny2007 wrote:So what does Bhí mé ag obair mean literally? Is it just plain wrong or is bhínn simply a more accurate way of expressing something done habitually in the past?
I can't find 'bhínn' on any of those verb conjugator sites.
There's nothing wrong with
bhí mé ag obair. It's what I would say myself, even though technically work is habitual by its nature.
I would use the aimsir ghnáthchaite in situations where it might be unclear whether I did something once or habitually.
Nuair a bhí mé óg, bhí slaghdán orm.
When I was young, I had a cold.
Nuair a bhí mé óg, bhíodh slaghdán orm.
When I was young, I [habitually] had a cold.
...but I would generally expect a sentence like this to have a phrase like
de ghnáth (habitually) or
go minic (often) in it.
Here's a good site to see verbs conjugated in gory detail:
http://www.csis.ul.ie/focloir/