'augh' and 'ough' words
Sometimes 'gh' say /f/ e.g. Do not laugh at the pig in the trough.
Or, He's rough and tough enough to eat and cough at the same time.
Often 'gh' are ghost letters which say nothing at all.
His daughter caught the naughty boy who fought in school. She brought him to his teacher who taught him to be nice; or so she thought.