Hi Chris - Your mum told me about your videos - You are sooooo talented! It appears to come easily to you and is obviously a sign that you have a 'gifted ear', as I understand you also have perfect pitch, which is quite rare. Tenses are very tricky to learn! Keep it up Chris, you are doing a fant...
I gave up as he was talking too fast which is a shame as it would have been interesting :(