Ferr and fer spellings
If the fer sounds like fer, then it is stressed and you must write ferr (double r)
If the fer sounds like fr, when you say the word quickly, then it is unstressed and it is spelt with one r (fer)
Say the words quickly and you will hear if the fer is stressed or not.
preferring
reference
transferring
buffering
suffering
transference
conference
referee
referring
preference
