I'm trying to understand use-case of Present Continuous. I've read BBC Grammar Challenge. I don't understand using of the Present Continuous in the following case:
When I'm speaking I often distort some words.
The action (speaking in that case) is not occurring just now or around now. It occurs in general.
Is it true that we use Present Continuous tense to describe the process of action itself (
speaking in my case) instead of the action in general?