V over n
I.1 The 'argue' group
These verbs are concerned with speaking or making sounds. The prepositional phrase indicates what you are talking or making sounds about.
He was still chuckling over the letters when the telephone rang.
From her first moments in cabaret in the early 1950s, everyone who saw Georgia Brown enthused over her professionalism and her potential.
People will get the best deal if they haggle over prices.
The verbs argue, bicker, dicker, fight, haggle, quarrel, row, squabble, tussle, and wrangle often have a plural Subject with this pattern because they are reciprocal verbs concerned with having an argument or discussion (see Chapter 6).
We argued over household chores.
In the case of the following verbs, the preposition over is sometimes followed by a wh-clause: argue, bicker, equivocate, fight, haggle, quarrel, quibble, row, squabble, tussle, wrangle.Some of these verbs also have the pattern V with n over n (see Chapter 6).
argue bicker chuckle coo crow dicker enthuse equivocate fight gush haggle quarrel quibble rhapsodize row squabble tussle wrangle
Experts are still quibbling over how to disentangle the complex web of genes, culture and environment.