I thought you used "ar" as the interrogative particle in the past. Is that only sometimes?
It is, for all except six irregular verbs: Feic, bí, abair, téigh, déan, faigh
So you can't use "chonaic" here?
Correct, because it is irregular. Chonaic is only used for the positive. Chonaic me, an bhfaca tu, agus ni fhaca me.
An bhfaca tú … ? is also positive. I think that what you’d meant was that the dependent form faca is used following a verbal particle.
Thanks! I couldn't find the answer on GnaG, so I was getting worried. I see now that the exceptions are listed in the notes for Verbs: Past 1.
What is the distinction that makes "an radharc" correct but "an t-amharc" not correct?
Duolingo uses amharc for "eyesight", but in some dialects it can be used for a scene/spectacle.
I must be hanging out with the wrong dialect. Got dinged again for not using radharc. The sign at The Ladies View in Killarney said Amharc Na Mban.