Looking on the internet deeply has found these results:

I haven't seen her in a long time is the most popular phrase on the web.

I haven't saw her in a long time 10 results on the web	I haven't seen her in a long time 12,010 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	I haven't seen her in a long time. 長い間雪を見てい ... I haven't had pizza in a long time. 長い間彼女に会っていない Sep 17, 2015 ... “I can't wait to see her, I haven't seen her in a long time,” Wright said. “She's going to have a little conversation with our students, and I'm ... 2015年7月28日 ... 長い間ピザを食べていません WAYNE: Do you miss Mallory? MICKEY: Of course, I miss Mallory. She's my wife. I haven't seen her in a long time. What a stupid question. 2. thicker than a snicker. a fat person who is not sloppy just thick. I haven't seen her in a long time; she's gotten thicker than a snicker. by zzmdusa May 23, 2010.

I haven't saw her in a long time

10 results on the web

I haven't seen her in a long time

12,010 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

I haven't seen her in a long time. 長い間雪を見てい ...
I haven't had pizza in a long time. 長い間彼女に会っていない
Sep 17, 2015 ... “I can't wait to see her, I haven't seen her in a long time,” Wright said. “She's going to have a little conversation with our students, and I'm ...
2015年7月28日 ... 長い間ピザを食べていません
WAYNE: Do you miss Mallory? MICKEY: Of course, I miss Mallory. She's my wife. I haven't seen her in a long time. What a stupid question.
2. thicker than a snicker. a fat person who is not sloppy just thick. I haven't seen her in a long time; she's gotten thicker than a snicker. by zzmdusa May 23, 2010.