"A Jim, a chara, agus a ghaoil, is tú an fear atá de dhíth orm. Cén uair a tháinig tú ar ais chun na cathrach?”
A Jim, a chara, agus a ghaoil, is tú an fear atá de dhíth orm - Jim, my friend, and relative, you're the very man I need
a chara agus a ghaoil - Irish prefers the vocative case, where English uses a possessive adjective.
Is tú an fear atá de dhíth orm - This is an inverted form of 'Tá tú de dhíth orm', and illustrates how emphasis is achieved in Irish with syntax instead of voice inflexion - The part for emphasis is brought to the front, and the rest is put into a relative clause. This is used with both sentences of category, and of identity:-
D'ith sé preáta -> (Is) preáta a d'ith sé - not a sausage or a worm.
Ghoid sé hata -> (Is) hata a ghoid sé - not a shoe, or a cow.
Ghoid Seán an hata -> Is é Seán a ghoid an hata - not Paddy, or Séimidh
Ghoid Seán an hata -> Is é an hata a ghoid Seán - so in the case of the theft of a shoe, a hat, a bucket, the item is clarified by the bringing forward of the actual item to the front of the sentence.
These structures are mocked in Stage Irish satire in English 'Is it yourself that is in it?'. In Irish this kind of emphasizing strategy is the norm.