For example:
"He whistled to himself as he walked down the road"
In the example above, may I change it into either "whistling to himself, he walked down the road," or, "he whistled to himself, walking down the road"?
I saw a expression like "when two actions occur at the same time, and are done by the same person or thing, we can use a present participle to describe ONE OF THEM"
OP definitely said "ONE OF THEM". Doesn't it mean I can describe whatever I want using present participle?