On and at
Air agus aig
Usually we must say that feelings are oirnn (on us), using the preposition air (on).
Tha amharas air.
He is suspicious [lit. suspicion is on him].
A bheil (an) cianalas orra?
Are they homesick [lit. is the homesickness on them]?
Tha (an t-)eagal orm.
I am afraid [lit. fear is on me].
Sometimes we need to use both prepositions aig and air to talk about feelings. The words gràin , gaol and gràdh all use both.
The feelings are aig the person, but they have them air someone or something:
Tha gràin aig Iain air a' phrògram sin.
Iain hates that programme [lit. There is hate at Iain on that programme].
Nach robh gaol aice air Seòras?
Didn't she love George [lit. Wasn't there love at her on George]?
Saoilidh mi gu bheil gaol aige oirre.
I think he loves her [lit. I think that there is love at him on her].
Tha gràdh agam air an duine sin!
I love that man [lit. There is love at me on that man]!