Looking on the internet deeply has found these results:

I didn't succeed is the most popular phrase on the web.

I hadn't succeeded 169,000 results on the web	I didn't succeed 11,680,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Giller hasn't succeeded in creating a Confessor, only aberrations. And meanwhile, George, Sr hadn't succeeded in startling anyone but himself. We just haven't succeeded yet. Yes, but we haven't succeeded. You haven't succeeded in the past. I'm sorry, we haven't succeeded in synthesizing the compound from KRDB. NOTE: PolEdit allows to create users groups and users, but we haven't succeeded yet. I had succeeded beyond my wildest expectation.	I didn't succeed. When he died, I tried to take his place. I didn't succeed. No, I didn't succeed... Her mother and I didn't succeed in preparing her for the real world, I'm afraid. Teach him how to dance the twist, I didn't succeed. But I didn't succeed. I tried to be a postman, and I didn't succeed in that either! But when I finally lifted the eyes, with my great astonishment, I noticed that the Purple heron was still there. I didn't succeed to understand how this was possible, it had realized now my presence and I was completely to the open one.

I hadn't succeeded

169,000 results on the web

I didn't succeed

11,680,000 results on the web

More popular!

Giller hasn't succeeded in creating a Confessor, only aberrations.
And meanwhile, George, Sr hadn't succeeded in startling anyone but himself.
We just haven't succeeded yet.
Yes, but we haven't succeeded.
You haven't succeeded in the past.
I'm sorry, we haven't succeeded in synthesizing the compound from KRDB.
NOTE: PolEdit allows to create users groups and users, but we haven't succeeded yet.
I had succeeded beyond my wildest expectation.

I didn't succeed.
When he died, I tried to take his place. I didn't succeed.
No, I didn't succeed...
Her mother and I didn't succeed in preparing her for the real world, I'm afraid.
Teach him how to dance the twist, I didn't succeed.
But I didn't succeed.
I tried to be a postman, and I didn't succeed in that either!
But when I finally lifted the eyes, with my great astonishment, I noticed that the Purple heron was still there. I didn't succeed to understand how this was possible, it had realized now my presence and I was completely to the open one.