How do prepositions affect other words?

In Irish, some prepositions affect the words that follow them. Let’s look at how this happens.

Prepositions that do not affect the next word

ag

as

le

i*

chuig

go

idir (between)

*i puts an urú / eclipse on the next word

*i becomes in before a vowel, for example in Iúr Cinn Trá

Examples of prepositions that do not affect the next word:

  • go baile
  • le cara
  • as mála

Prepositions that put a séimhiú / aspiration on the next word

ar

do

de

roimh

thar

trí

faoi

ó

idir (both)

Examples of prepositions that put a séimhiú / aspiration on the next word:

  • ar thábla
  • roimh bhaile
  • ó chara

Can you fill in the gaps below?

Question

Fuair mé cárta ó _____ (cara) dom.

Fuair mé cárta ó chara dom.

Question

Bhí peann faoi _____ (tábla) ar scoil.

Bhí peann faoi thábla ar scoil.

Question

Thaistil mé le _____ (cara).

Thaistil mé le cara.

Question

Chuaigh an liathróid trí _____ (fuinneog).

Chuaigh an liathróid trí fhuinneog.

Question

Rinne mé m’obair bhaile roimh _____ (meán oíche).

Rinne mé m’obair bhaile roimh mheán.

Question

Thiomáin Daidí go _____ (baile mór).

Thiomáin Daidí go baile mór.

Question

Bhí idir (both) _____ (cailiní) agus ghasúir ann.

Bhí idir chailiní agus ghasúir ann.

Question

Thóg mé lón amach as _____ (mála).

Thóg mé lón amach as mála.