humming

She was humming to herself.

He was humming a tune to himself.

The garden was humming with the sound of bees.

The office was really humming with activity.

The school was always humming with activities.

she left the theatre humming a cheerful tune.

The bees were humming in the garden.

The bees were humming around the hive.

the repair shops are humming as the tradesmen set about their various tasks.

She is humming a folk song that I never heard before.

That's right. It's really humming along here.

There was a humming in the air.

Over the weekend, the city's parks and shopping areas were already humming.

And I took a high-speed video of my throat while I was humming.

Buzz, buzz! the hive was humming, busily, joyfully.

Very funny.  Now I'll be humming if anyone near me starts to choke!

Gilderoy Lockhart was sitting there, humming placidly to himself.

Wildeve began humming as the reddleman had done.

He could hear an insect humming gently somewhere behind the curtain.

He was humming merrily as he stoked the fire.