One mistake I have seen several times recently is “reign(s)” when it should be “rein(s)”, e.g “Joe Bloggs took the reigns”, or “I’ll have to reign him in”.

And a peeve while watching an episode of “Hope Street” last week (BBC TV drama series based in N Ireland) - investigating the death of a person called Donal - which is correctly pronounced like Donald, but without the second D. All characters except one pronounced it that way, but the lovely Leila persistently called him Dohnal. No need, she had a neutral English accent. Why didn’t the producer, continuity person, or even the bluntly-spoken other characters ever correct her? It stuck out like a sore thumb!