Why does the /d/ sound sometimes disappear?

Hi. I'm Tim and this is my pronunciation workshop. Here I'm going to show you how English is
really spoken. It'll help you to become a better listener and a more fluent speaker.
Are you ready? Come on, follow me.
Today, we're going to talk about one of the most
important questions in contemporary Britain. The answer will also help you improve your
pronunciation. So, what is this question? Well, it involves one of these, and one of
these. Quite simply: do you prefer your potatoes steamed - or boiled? What's your preference?
Well this is what the people of London think.
I prefer steamed potatoes. I prefer boiled potatoes.
I prefer steamed potatoes to boiled potatoes. I prefer boiled potatoes.
So there we have it: the nation has spoken. Our completely scientific survey proves that
the country is divided fifty-fifty. But what about pronunciation? Well, one of the things
that happens when we speak English fluently is that we don't always pronounce all the
sounds in every word. The words steamed and boiled both end in the sound /d/, don't they?
Or do they? Watch and listen again - can you hear the sound /d/?
I prefer steamed potatoes. I prefer boiled potatoes.
I prefer steamed potatoes to boiled potatoes. I prefer boiled potatoes.
It's very difficult to say /d/ when it comes in between two other consonants. Your mouth
has to do a lot of work. So in many cases the /d/ is not pronounced. 'Boiled potatoes'
becomes 'boilpotatoes'. And 'steamed potatoes' becomes 'steampotatoes'. This is called elision.
Here are some more examples.
My best friend let me borrow his car. Don't hold back - say what you mean.
His bike rolled down the hill without him.
Right, so you've heard the examples, and now it's your turn. You know the drill: listen
and repeat.
My best friend let me borrow his car.
Don't hold back - say what you mean.
His bike rolled down the hill without him.
Well done. Now remember, if you want to learn more about pronunciation, then please visit
our website, bbclearningenglish.com. And that is about it from the pronunciation workshop
for now. I'll see you soon. Bye bye. Right - now I'd better prepare my own potatoes.
Ahhh!! I just peeled my finger! Ewwwsh - doesn't look good...