Looking on the internet deeply has found these results:

I doubt he has the guts is the most popular phrase on the web.

I doubt he has the gut 10 results on the web	I doubt he has the guts 133 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.	Jul 19, 2015 ... [�]Casen_ 6 points7 points8 points 5 months ago (1 child). I doubt he has the guts to do that again though. permalink; save; parent; report; give�... Nov 27, 2015 ... Though it seems all talk, I doubt he has the guts to really make a move on her. ( Somehow reminds me of a story where Rarity believed that�... Jun 16, 2015 ... I doubt he has the guts to show up at Great American for the All Star game. ConstantineXI on June 16, 2015 at 2:59 PM. That would be my first�... Aug 16, 2015 ... Let him do it but I doubt he has the guts to take on Vettel. 1; 2; 3; 4; 5. Total votes: 0. Richard says: August 17, 2015 at 1:37 pm. Alonso verses�...

I doubt he has the gut

10 results on the web

I doubt he has the guts

133 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.

Jul 19, 2015 ... [�]Casen_ 6 points7 points8 points 5 months ago (1 child). I doubt he has the guts to do that again though. permalink; save; parent; report; give�...
Nov 27, 2015 ... Though it seems all talk, I doubt he has the guts to really make a move on her. ( Somehow reminds me of a story where Rarity believed that�...
Jun 16, 2015 ... I doubt he has the guts to show up at Great American for the All Star game. ConstantineXI on June 16, 2015 at 2:59 PM. That would be my first�...
Aug 16, 2015 ... Let him do it but I doubt he has the guts to take on Vettel. 1; 2; 3; 4; 5. Total votes: 0. Richard says: August 17, 2015 at 1:37 pm. Alonso verses�...