I'm using a book to teach my students but in one example it says you can't use "say" in a participle clause because it's not continuous e.g.
- Joanna is a woman who says what she thinks,
- ... woman saying what she thinks.
However, in an exercise after the explanation it has this:
- I found a note in red saying "get into the car..."
Can anyone explain why I can use the -ing form in this example?