Singular
NOMINATIVE
fiach dubh
▪an fiach dubh
GENITIVE
fiaigh dhuibh
▪an fhiaigh dhuibh
NOTE When the definite article
(an)
is not present, generally the nominative is used instead of the genitive:
ag lorg an fhiaigh dhuibh, le haghaidh an fhiaigh dhuibh
but ag lorg fiach dubh, le haghaidh fiach dubh.