Continuous Present

Iona has suddenly got the hang of the present continuous tense. A couple of weeks ago she started saying "What are you doing today?" and answering herself with phrases such as "I am piano". I would correct her "Yes, you're playing the piano". Then, yesterday I think, she started saying, for her teddy, "I am cuddling Iona", and today she kept trying out the sentence with different verbs. She also tried different persons - at lunchtime she said "I am eating peas. We are eating peas." It was fascinating to see her figuring out how language works, and amazing, too, as she's still so young.