often修饰的是谓语动词see，而see的宾补用不带to的不定式还是现在分词，取决于经常看到的是完整的动作还是动作的片段，即often并不能影响宾补的选择。中学的这类试题是对感官动词后的宾补形式的曲解，是欠妥的。COCA语料库搜索often see/saw him, 得到的例句足以证明这一点。例如：

We more often see him handing out grace to the people he hangs out with.

They often see him explaining, defending or retracting something he said.

During Tolkien's 34-year stretch as a professor at Oxford University, students could often see him heading into St. Aloysius Church for mass;

They never talked to me, but I often saw them talking to other patrons.

...and neighbors often saw them playing outside, ...

Simone often saw them driving past in Warren's old truck, ...