Are there any rules/patterns for when this happens? I hear that 'gorm' often are pronounced with an extra 'o' between the 'r' and the 'm' - e.g. 'gorom' And 'dearg' is often pronounced with an extra 'a' between 'r' and 'g' - e.g. 'dearag'
As Gaelic is transferring so much else of its' pronunciation (e.g. lentition, ag Vs a' etc) to writing/spelling, I find it strange that this help-vocal isn't included in the written language as well.