Looking on the internet deeply has found these results:

i did study that is the most popular phrase on the web.

i did studied that 10 results on the web	i did study that 149 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.	Nov 18, 2015 ... But I did study that stuff at university; I had an understanding of the history and spoke some of the language. "I think if you move here you have ... Nov 9, 2012 ... There are things about walking up and down stairs, so I did study that, also. A lot of people's favorite performances of yours have been on the ... Nov 17, 2015 ... I did study that style of playing, too, but really I focused more on classical composition than performance.” Washington also played a major part ... Apr 3, 2015 ... I was also working when I did study that was a great experience. Pretty happy to find some tips to convince parents for working.

i did studied that

10 results on the web

i did study that

149 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.

Nov 18, 2015 ... But I did study that stuff at university; I had an understanding of the history and spoke some of the language. "I think if you move here you have ...
Nov 9, 2012 ... There are things about walking up and down stairs, so I did study that, also. A lot of people's favorite performances of yours have been on the ...
Nov 17, 2015 ... I did study that style of playing, too, but really I focused more on classical composition than performance.” Washington also played a major part ...
Apr 3, 2015 ... I was also working when I did study that was a great experience. Pretty happy to find some tips to convince parents for working.