Singular
NOMINATIVE
post cas
▪an post cas
GENITIVE
poist chais
▪an phoist chais
NOTE When the definite article
(an)
is not present, generally the nominative is used instead of the genitive:
ag lorg an phoist chais, le haghaidh an phoist chais
but ag lorg post cas, le haghaidh post cas.
Plural
NOMINATIVE
poist chasa
▪na poist chasa
GENITIVE
post cas
▪na bpost cas
NOTE When the definite article (na) is not present, generally the nominative is used instead of the genitive:
ag lorg na bpost cas, le haghaidh na bpost cas
but ag lorg poist chasa, le haghaidh poist chasa.
