"Finlay and Norman are here."
Translation:Tha Fionnlagh agus Tormod an seo.
so why does "tha iain ann" translate as "iain is here" but "tha fionnlagh agus tormod ann" doesnt translate as "finlay and Norman are here"?
You use the vocative case (the version with a (except for names beginning with vowels), lenition and, for masculine names, slenderisation) when you are talking to someone. When you are talking about someone, as here, you use the nominative case (i.e. the plain form). So you might say, Fhionnlaigh agus a Thormoid, a bheil sibh an seo? - Finlay and Norman, are you here? - using the vocative case, as you are talking to them, but you would say Tha Fionnlagh agus Tormod an seo as here, using the nominative or plain form, as you are talking about them.