Æren wrote:Foghlaimím Gaeilge arís
The simple present isn't used as much in Irish as in some other languages, here I would use the present continuous "Táim (or Tá mé) ag foghlaim (na) Gaeilge arís".
Æren wrote:le aon cara.
When counting things in Irish, if you want to say "one thing" you use the word "amháin" after the noun you are counting, so "cara" = (a) friend, "cara amháin" - one friend. You can use "aon" before as well if you want to emphasise that it's just one friend, so "aon chara amháin" = "just one friend" or "a single friend". As Irish doesn't have an indefinite article, you don't really need to use the number here, you can just say "cara" (although, the most idiomatic way to phrase this IMO is "le mo chara" = with my friend, or "le cara liom" = with a friend of mine (lit. with friend with-me).
Æren wrote:Úsáidimid an leabhar TY Irish.
An seaneagrán nó an nua-eagrán?