Looking on the internet deeply has found these results:

I had watched is the most popular phrase on the web.

I had had watched 13 results on the web	I had watched 175,800 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Jun 15, 2009 ... ... on a long trip somewhere. I found this video a couple of months ago that explains how to change a tire but I wish I had had watched before ... Feb 1, 2012 ... I had had watched this video long before and remembered it. I find the way to exercise you describe here very interesting and i wonder how it ... Nov 30, 2015 ... Then as I thought back to all the award speeches I had had watched on YouTube (mostly due to my fascination of the real life McClain/Winger ...	Jan 7, 2015 ... I had watched television yesterday when it was time to go to bed. Activity in the past = "it was time". Activity before the past = "had watched ... Pluperfect. I had watched you had watched he had watched we had watched you had watched they had watched. Future. I will watch you will watch he will watch Oct 13, 2013 ... "yes I do. But I watched only some of them"; "yes I do. But I have wathed only some of them"; "yes I do. But I had watched only some of them". Past Perfect. Had + past participle: I had watched the news before I went to bed. Past Perfect Continuous. I had been watching watching the ...

I had had watched

13 results on the web

I had watched

175,800 results on the web

More popular!

Jun 15, 2009 ... ... on a long trip somewhere. I found this video a couple of months ago that explains how to change a tire but I wish I had had watched before ...
Feb 1, 2012 ... I had had watched this video long before and remembered it. I find the way to exercise you describe here very interesting and i wonder how it ...
Nov 30, 2015 ... Then as I thought back to all the award speeches I had had watched on YouTube (mostly due to my fascination of the real life McClain/Winger ...

Jan 7, 2015 ... I had watched television yesterday when it was time to go to bed. Activity in the past = "it was time". Activity before the past = "had watched ...
Pluperfect. I had watched you had watched he had watched we had watched you had watched they had watched. Future. I will watch you will watch he will watch
Oct 13, 2013 ... "yes I do. But I watched only some of them"; "yes I do. But I have wathed only some of them"; "yes I do. But I had watched only some of them".
Past Perfect. Had + past participle: I had watched the news before I went to bed. Past Perfect Continuous. I had been watching watching the ...