I'm playing basketball right now with my friends.
我在打篮球.(一般进行时)
When I was playing it last time,I injured my foot,but I recovered soon.
我昨天打篮球的时候把脚弄伤了,但很快就好了.(过去进行时)
I will be playing it again tomorrow and I hope I won't injure myself again.
我明天还会打篮球,但愿不会再受伤了.(将来进行时)