Let’s put that together so you can talk about sons and daughters.
mo mhac
my son
do mhac
your son
a mhac
his son
a mac
her son
ar mac
our son
ur mac
your son
am mac
their son
mo nighean
my daughter
do nighean
your daughter
a nighean
his daughter
a nighean
her daughter
ar nighean
our daughter
ur nighean
your daughter
an nighean
their daughter