Looking on the internet deeply has found these results:

u didn't told me about that is the most popular phrase on the web.

u didn't tell me about that 14 results on the web	u didn't told me about that 15 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Big mike didn't tell me about that. I wonder why Ted didn't tell me about that. Because Fiona didn't tell me about that. The boy didn't tell me about that. You didn't tell me about him. Gianni didn't tell me about that. I wonder why Ted didn't tell me about that. You didn't tell me about that part.	Kate didn't told me how old you were, so I bought you a toy truck. It's been, like, 24 hours and you still haven't told me about your date with Dominic. You still haven't told me about your chat with Detective Fales. Your son want to marry a guy, you didn't told me that. You haven't told me about your husband. You still haven't told me about the hour you spent with Borz Altan in Maracaibo. He has a wife that he hasn't told me about that I talked to on the phone just now. Well, you haven't told me about the safe hidden in your office.

u didn't tell me about that

14 results on the web

u didn't told me about that

15 results on the web

More popular!

Kate didn't told me how old you were, so I bought you a toy truck.
It's been, like, 24 hours and you still haven't told me about your date with Dominic.
You still haven't told me about your chat with Detective Fales.
Your son want to marry a guy, you didn't told me that.
You haven't told me about your husband.
You still haven't told me about the hour you spent with Borz Altan in Maracaibo.
He has a wife that he hasn't told me about that I talked to on the phone just now.
Well, you haven't told me about the safe hidden in your office.