in Irish when saying

If I were ....... ( eg rich )
Were I ..... ( less tired )

If I had done it

when I am ......( at the cinema I always have popcorn )

When I get my pay I will buy you some .

I just need to know how Irish handles these particular tenses

If I were rich, I'd buy an island.
Dá mbeinn saibhir, cheannóinn oileán.

(bheadh + mé = bheinn, cheannódh + mé = cheannóinn)

Were I not tired, I'd cut the grass.
Mura mbeadh tuirse orm, bhearrfainn an féar.

If I had done it, I'd admit it.
Dá mbeadh sé déanta agam, d'admhóinn é.

When I'm at the cinema, I always have popcorn.
Nuair a bhím ag an bpictiúrlann, bíonn poparbhar agam i gcónaí.

While I'm at the cinema, I always have popcorn.
Agus mé ag an bpictiúrlann, bíonn poparbhar agam i gcónaí.

When I get my pay I'll buy you it.
Nuair a fhaighim mo phá, ceannóidh mé duit é.
nó
Nuair a gheobhaidh mé mo phá, ceannóidh mé duit é.