There are some rules to help you determine the plural of nouns, but in most cases you have to learn what type of plural goes with what noun. In this exercise, rewrite each word in the plural, then redo the exercise until you have learnt what the correct plurals are. Use the 'Taispeáin dom' button if you have difficulties.

Some useful rules

A) Words ending in eog/óg: add a.

B) Words ending in ín: add í.

C) Words ending in án: change this to áin.