ag.

particle used with the verbal noun to mark the progressive aspect

ag siúl

ag gáire

at

of, for (after certain adjectives)

Bhí sé go deas ag Cáit a dhul leat.

Tá sé éasca agat sin a rá.

of (after an indication of quantity)

Tá go leor acu anseo.

Tá duine againn tinn.

of (to indicate possession emphatically, used after a noun qualified by seo (“this”) or sin (“that”))

an teach seo againne

na bróga sin agatsa

used with forms of bí (“to be”) to indicate possession in place of a verb meaning ‘have’

Tá teach ag Seán.

used with forms of bí (“to be”) and a past participle to indicate a perfect tense

Tá an teach péinteáilte ag Seán.

used with forms of bí (“to be”) to indicate ability to do something

Tá Spáinnis agam.

Tá caint agam.