The phrase "at fighting with" is not standard in written English and may sound awkward.
It could be used in informal contexts to describe engaging in a conflict or struggle with someone.
Example: "They were at fighting with each other over the last piece of cake."
Alternatives: "in conflict with" or "arguing with".
While I was at the hospital speaking to specialists, I had an assistant at work fighting with Aetna to approve my necessary tests.
Generally they were the people who were the most obnoxious at shows, fighting with showroom staffers over seating, blacking out, and puking behind planters at late-night parties.
If you are going out, partying at night, fighting with your spouse, avoiding the gym or let yourself get into a funk, the process won't work.
The intra-sexual interactions involved walking towards, following, chasing, attacking, lunging at, and fighting with another male.
Mr. Patten seems passionate and sensible, the master of British understatement but also of the British skill at fighting back with stinging words.
I found myself pretending to be a professional gambler at the casino, fighting with two older gay men at the bar, and topping it all off with a (solo) reenactment of the final scene in Dirty Dancing, which was quite the show for all the Germans boarding the boat at 7 AM.
Any man who stays in ISIS territory is presumed to, at best, be sympathetic to the group and, at worst, actively fighting with it.
Fitch was also suspended for the Feb. 19 game at Tennessee after fighting with a teammate on the flight back from a loss at Georgia.
Buhrdorf was at that point fighting with the infantry against Russian attacks.
While "we" will lose fewer people at first by fighting with warbots, this way of fighting may well catalyse greater attacks on us in the long run.
