Looking on the internet deeply has found these results:

She was doing sport is the most popular phrase on the web.

She were doing sport 10 results on the web	She was doing sport 13 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	MC Jan 2, 2016 ... ... the pouches, reemplaced by sneackers, she looked like she was doing sport rather than being part of a nefarious and notorious organization! Her mum, Mary, explained: "She had a bad knee for 18 months to two years which started when she was doing sport at the middle school. She could hardly walk�... do sport While he was listening to music, she was doing sport. 3. PE EAE Page2/3 Template Created by Yolanda Cabr�... Jul 27, 2015 ... 2)listen to music

She were doing sport

10 results on the web

She was doing sport

13 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

MC
Jan 2, 2016 ... ... the pouches, reemplaced by sneackers, she looked like she was doing sport rather than being part of a nefarious and notorious organization!
Her mum, Mary, explained: "She had a bad knee for 18 months to two years which started when she was doing sport at the middle school. She could hardly walk�...
do sport While he was listening to music, she was doing sport. 3. PE
EAE Page2/3 Template Created by Yolanda Cabr�...
Jul 27, 2015 ... 2)listen to music