She was in school however he was not
tr*nsl*t**n depends slightly on the emphasis used in English.
She was in school however he was not >
Bha ise anns an sgoil ach cha robh esan.
She was in school however
he was not >
Bha i anns an sgoil ach cha robh esan.
As far as the second
ann goes, it's not wrong, just not needed because, as the other have said, it's already covered in a sence by the first
anns an. Because it's not expected here, if you DO use it it gives the sentence a slightly different meaning; in this case, the extra ann makes your statement a bit more emphatic, focussing more strongly on the fact that he wasn't there.
Bha ise anns an sgoil ach cha robh esan ann.
A bit like saying in English ... but HE was NOT THERE (using your voice).
Gaelic just doesn't like using intonation for emphasis but instead has a nifty set of other ways of showing emphasis.
Incidentally
Bha i anns an sgoil ach cha robh e ann
without the
esan again has a slightly different connotation. Instead of making a simple contrast of "she was there; he wasn't" this carries the flavour of "she was in school (because they had a date... or some other reason) but he didn't show up".
And
Bha peann
is NOT ok. That's not a complete sentence in Gaelic. A statement of existence in Gaelic needs some form of
ann.