dia daoibh aríst,

This just seems to be one those simple things that's throwing me

Would I say:

"Bhí go leor obair aici le déanamh"

nó 

"Bhí go leor obair le déanamh aici" ? I'm leaning towards the second one but I'm having one of those days where everything seems off

GRMA

Usually Bhí obair le déanamh aici
In Munster also possible: Bhí obair aici le déanamh

go raibh maith agat a Labhráis

Is there a way to determine where the prepositions would be placed? I was looking around on Duolingo, and someone asked why "Tá fadhb aici le drugaí" is accepted but "Tá fadhb le drugaí aici" isn't. One commentor (who is known to not give a shit about native speakers, who, in how own words, need to basically "fuck off") said it was a matter of emphasis, but I'm not sure about this. Is there just a general rule on where to place prepositions in phrasal verbs?

If I recall correctly, single pronouns always go last and preposition-pronoun combos go right before them (or last if they are absent). So "tá fadhb le drugaí aici" would be the only correct choice.
Some examples
"Rinne mé an t-aistriúchán leis" / "Rinne mé leis é"
"Tá cat anois agam"
"Chonaic mé i measc na traenacha ag teacht ó Londain é"
"Ní raibh mórán le rá faoin ealaín aici"

Más buan mo chuimhne....
As always, I could be wrong!

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This kind of tá + ag + le (have with) is different from "tá rud le déanamh ag duine" (something is to be done by some one) as in the previous posting
Both aren't comparable.



Yes, simple pronouns and prepositional pronouns usually go last. But this is just a tendency, not a strict rule.
There are idioms (phrasal verbs etc.) which tie their prepositions next to them.

"To have" is such an idiom, so "aici" comes first and the additional information "le drugaí" goes last.

Thanks, Labhrás. So the last example I gave about mórán le rá was wrong, right?

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Wait... I got "Tá cat anois agam" from a textbook; are you sure that "to have" brings the prepopronoun forward?

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"Ní raibh mórán le rá faoin ealaín aici"

No, it is right.
That's a different idiom. (le + verbal noun)

Ba mhaith liom a bheith cinnte faoi ghach rud mar atá tú féin, a chara. Le cúnamh Dé éireoidh liom lá éigin

I had thought that maybe you were saying it would be right to say "Ní raibh mórán le rá aici faoin ealaín"

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