My brother dances well, which I can't do. (which为do的宾语,故do为实意动词)
He is trying to persuade me to sell my house, but I definitely will not do it. 去掉并列连词,用which取代it,就得到关系分句: He is trying to persuade me to sell my house, which I definitely will not do.
现在回答网友的句子: Hanging bananas also prevents them from bruising on the counter, and they’re more prone to do it as they continue ripening.
to do it=to bruise on the counter. 去掉并列连词,用which取代it,则得到非限制性关系分句: Hanging bananas also prevents them from bruising on the counter, which they’re more prone to do as they continue ripening.