Some people on both sides are still grumbling, and I'm not saying that nothing bad can happen.

In this chapter, you see that agricultural progress is being made, but the people grumble.

A few people grumbled, but nobody really raised a fuss.

Some people who had paid money to be there grumbled.

The people they passed were grumbling because choice was suspended.

But the people who clear the snow are grumbling.

Some people behind us grumbled at the smallness of her voice.

But people were grumbling that many of the reports were wrong.

Such people grumble that Microsoft rarely breaks new ground on its own.

Instead of whispering, people laughed and grumbled openly in the street.