I am going to school now.
What are you doing now?
I am going to shop at the moment.
I am playing to football now.
I am playing to basketball now.
I am doing my homework now.
А вообще построение такое(на будущее)
1. S(подлежащее) be Ving
2. Be S Ving?
3. S be(is,am,are(везде, где be)) Ving