Yes! I got the last word! Didn't get the others but I got the last one! Had no idea what the sentence meant but I got the last word!
Because sin means that, those.
- an buachaill = the boy
- an buachaill sin = that boy
- na buachaillí = the boys
- na buachaillí sin = those boys
It is the definite demonstrative, roughly. The boy there, in Irish , approximates -that boy. Reply otherwise