Looking on the internet deeply has found these results:

I heard about it is the most popular phrase on the web.

I have heard about it 116,400 results on the web	I heard about it 1105,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Dec 11, 2015 ... I said 'I heard about it before', and a coworker corrected me and told me to say 'I have heard about it before'. Now my understanding was the in ... Dec 1, 2015 ... I have Heard about it but I have never. Seen it “An Example of Exploratory Sequential Mixed Design Study”. Ahmet Polat1, Soner Doğan1 ... I have Heard about it but I have never Seen it “An Example of Exploratory Sequential Mixed Design Study”. Ahmet Polat, Soner Doğan, Selcuk Besir Demir ... Dec 1, 2015 ... The Constructivist Approach? I have Heard about it but I have never. Seen it “An Example of Exploratory Sequential Mixed Design Study”.	Englisch I Heard About It From a Friend: Assessing Interest in Buprenorphine Treatment. Aaron D. Fox, MD, MS,1,2 Pooja A. Shah,3 Nancy L. Sohler, PhD, MPH,4 ... Englisch 9. doi: 10.1080/08897077.2013.804484. I heard about it from a friend: assessing interest in buprenorphine treatment. Fox AD(1) ... Übersetzung für: The first I heard about it was when. ä ö ü ß. DE <> EN, DE –> EN, EN –> DE, Deutsch Wörterbuch. Deutsch Subst Abus. 2014;35(1):74

I have heard about it

116,400 results on the web

I heard about it

1105,000 results on the web

More popular!

Dec 11, 2015 ... I said 'I heard about it before', and a coworker corrected me and told me to say 'I have heard about it before'. Now my understanding was the in ...
Dec 1, 2015 ... I have Heard about it but I have never. Seen it “An Example of Exploratory Sequential Mixed Design Study”. Ahmet Polat1, Soner Doğan1 ...
I have Heard about it but I have never Seen it “An Example of Exploratory Sequential Mixed Design Study”. Ahmet Polat, Soner Doğan, Selcuk Besir Demir ...
Dec 1, 2015 ... The Constructivist Approach? I have Heard about it but I have never. Seen it “An Example of Exploratory Sequential Mixed Design Study”.

Englisch
I Heard About It From a Friend: Assessing Interest in Buprenorphine Treatment. Aaron D. Fox, MD, MS,1,2 Pooja A. Shah,3 Nancy L. Sohler, PhD, MPH,4 ...
Englisch
9. doi: 10.1080/08897077.2013.804484. I heard about it from a friend: assessing interest in buprenorphine treatment. Fox AD(1) ...
Übersetzung für: The first I heard about it was when. ä ö ü ß. DE <> EN, DE –> EN, EN –> DE,
Deutsch
Wörterbuch. Deutsch
Subst Abus. 2014;35(1):74