never before have i witnessed such terrible behaviour vs never before i have witnessed such terrible behaviour

Some examples from the web:

• Never in all my years of practicing law have I witnessed such a complete and utter disregard for an accused man's constitutional rights.
• But never in all my years as a sportscaster have I witnessed something as improbable, as impossible, as what we've witnessed here.
• Never before have poverty eradication and sustainable development been more important.
• Yes, but never before have the dead arisen.
• Never before have ordinary people had so much freedom and opportunity.
• Then you'd be a bird so rare as to never before have been sighted.
• Never before have expectations been so high about what human beings can achieve with their lifespan.
• Never before have so many foreigners gathered in Japan.
• Never before have there been so many international treaties ratified by so many states.
• Never before have European economies known such a high level of convergence.
• Never before have so many salmon swum in our waters.
• I think never before have I heard such blubbering.
• Never before have l seen such an apparition.
• Never before have we clad strangers in the garb of our own people.
• Never before have I sensed that the future
• Mr President, never before have the EU's shortcomings been more evident.
• Never before have Europeans in one go faced having to lose so much power.
• I've been a policeman for 17 years, and never before have I seen anybody make a group like that.
• Never before have we in the west been so scrutinized.
• Never before have I felt such respect for an actor as on this day for Chishu Ryu.

Some examples from the web:

• I have witnessed what witchcraft can do.
• I have witnessed your skill with knife upon the unsuspecting.
• I have witnessed cold distance in his stare.
• I have witnessed Glaber and his men entering the city.
• I have witnessed them literally bypass people.
• I have witnessed fantastic results... from you over the years.
• I have witnessed firsthand the depths of your cruelty.
• I have witnessed them literally bypass people.
• I have witnessed all the fake latex stuff on my movie sets.
• I have witnessed your skill with knife upon the unsuspecting.
• Excuse me, but I have witnessed childbirth.
• I have witnessed their capacity for courage.
• I have witnessed firsthand the power of ideas.
• Write that I have witnessed it myself, under enemy fire.
• I have witnessed this at company level.
• In just the short time that I've been here, I have witnessed appalling things.
• I know him. I have witnessed him in action.
• This action is unlike anything I have witnessed in their behavior as soldiers.
• It has taken me, this journey, to Islamabad, where I have witnessed and met women with their faces melted off.
• I have witnessed greater spine within a snail.