It's been 'an incredibly challenging, exciting and demanding time,' he says of his spell in Scotland.
It was incredibly challenging and not something I could prepare for.
Similarly, there are teachers I met in an incredibly challenging school who were absolutely inspirational to both students and staff alike.
May described Thompson as an "incredibly challenging, assertive and ambitious woman working in a male-dominated field that she's climbed to the top of."
"Living without my children in Manchester has been incredibly challenging," he says.
"It is incredibly challenging," said Gottlieb, noting that many summer rock climbers take to ice falls in the winter.
I found it an incredibly challenging and interesting experience.
It is an incredibly challenging environment to work in, but time will tell the story.
I know this must be an incredibly challenging time for you and your family.
Do note that the focus is on the "me" - not the young people and their incredibly challenging futures.