Looking on the internet deeply has found these results:

prior to tripping over is the most popular phrase on the web.

prior to her trip over 11 results on the web	prior to tripping over 16 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
(photo on right) Mildred on the low loader prior to her trip over The Pennines to be shown at the annual FESTIVAL OF THE PLOUGH event. There is everything�...	... was leaning against a wall, the defendant was not liable because the woman who fell acknowledged having seen the lawnmower there prior to tripping over it. Oct 31, 2013 ... While one couldn't be blamed for thinking I'm referring to the British noun �git� � and no, I've never heard of it either prior to tripping over it on�... While one couldn't be blamed for thinking I'm referring to the British noun �git� � and no, I've never heard of it either prior to tripping over it on Google � which�... Apr 27, 2012 ... ... general reasonableness�and ensuring everyone's inclusion and happiness� and anticipating bumps in the road prior to tripping over [�].

prior to her trip over

11 results on the web

prior to tripping over

16 results on the web

More popular!

(photo on right) Mildred on the low loader prior to her trip over The Pennines to be shown at the annual FESTIVAL OF THE PLOUGH event. There is everything�...

... was leaning against a wall, the defendant was not liable because the woman who fell acknowledged having seen the lawnmower there prior to tripping over it.
Oct 31, 2013 ... While one couldn't be blamed for thinking I'm referring to the British noun �git� � and no, I've never heard of it either prior to tripping over it on�...
While one couldn't be blamed for thinking I'm referring to the British noun �git� � and no, I've never heard of it either prior to tripping over it on Google � which�...
Apr 27, 2012 ... ... general reasonableness�and ensuring everyone's inclusion and happiness� and anticipating bumps in the road prior to tripping over [�].