Hello, I have had some difficulties with pronouncing words in english too, but with practise I have made the all work but the word murderer, well I`ve never understood how does that one work. It is just very hard to say ur-der-er, the middle syllable ud-er is somehow dealable but the end always comes out all wrong. Please help ! And while your at it, queue [ku:] ?
Try it this way, mrrr-drrr-rrr. The letters <rrr> represent the sound in her, sir, fur. Then switch the syllables around, like this,
drrr-rrr-mrrr, and finally
Does that help?