My Irish grammar has never been too good. Partly because I was lazy and partly because I didn't learn any until I was in secondary school (by which stage I had enough Irish to get by). Having learned Portuguese in a year I see that classes combined with immersion in the language is the best way to learn. Over the years I have at least heard a lot of Irish being spoken and reading your pages in Irish I can still understand some of it. I would like to get a better grounding in the grammar however. Can you suggest some resources?