What do you like to do in your spare time (free time)? What activity makes you happy? Let's use 'swimming' as an example.
As you know, you can say "I love swimming" or "Swimming is my favourite activity".
Today, let's take a look a new phrase that you can use which shows your favourite activity:
"I'm never happier than when swimming."
The key is: never happier than when + -ing.
Here are some other examples:
She's never happier than when reading.
John's never happier than when playing the piano.
Now it is your turn. Give your example sentences telling us your favourite activity. What are you never happier than when doing? Make sure you use -ing.
