there is a lot of housework to do.to do是定语还是主补?

there is a lot of housework to do.to do是定语还是主补?
there is a lot of housework to do.to do是定语还是主补?

there is a lot of housework to do.to do是定语还是主补?
定语,限定“housework "的

定语，翻译为“······的”

定语。