Two girls talking about boys:
...
– Und was macht mein Typ mit der Brille? Wo ist der denn hingegangen? Siehst du den irgendwo?
– Nee, den kann ich nirgends entdecken.
– Na ja, so interessant ist der auch gar nicht gewesen.
Source: em Übungsgrammatik
It is (Präsens)perfekt of "sein" with nice, hard to translate modal particles. I'd say that the most fitting translation is:
He just was not that interesting.
"nicht" should be clear. "gar nicht" is "really not". "auch" means too, but here it puts emphasize on the fact that he wasn't interesting. I translated the modal particles with "just .. that".
Dic.cc has a lot of Englisch-German equivalents for German gar. But "auch gar nicht" is lacking. Almost impossible to explain situations when you would use auch gar nicht. And I won't make an attempt to try it.
http://www.dict.cc/?s=auch+gar+nicht
Das war auch gar nicht meine Absicht!
I would translate: That wasn't my intention anyway!
But maybe there are better translations.
I think I found a relevant (colloquial) dictionary entry: (from here)
so ... ist jd./etw. nun auch wieder nicht
may be translated as
sb./sth. is not as ... as all that [coll.]
Hence, your sentence may be translated as
Oh well, he was not as interesting as all that.
Would be nice if a native English speaker could confirm that this phrase is actually in use.
Here is more evidence for the existence of that phrase:
