Singular
NOMINATIVE
comhshubstainteach (MASC.)
chomhshubstainteach (FEM.)
GENITIVE
chomhshubstaintigh (MASC.)
comhshubstaintí (FEM.)
Plural
NOMINATIVE
comhshubstainteacha
chomhshubstainteacha (SLENDER CONSONANTS)
GENITIVE
comhshubstainteacha (STRONG PLURALS)
comhshubstainteach (WEAK PLURALS)
Other forms
COMPARATIVE
níos comhshubstaintí
▪ní ba chomhshubstaintí
SUPERLATIVE
is comhshubstaintí
▪ba chomhshubstaintí