I will set about my task at once.

I recommend you to set about your business without delay.

Police set about processing the tragic murder scene.

Seeking a challenge, Mary set about translating Tom's sentences – a difficult task at the best of times – into Old Church Slavonic.

She set about writing the essay.

It's about time you set about cleaning the table.

The Cyclops lifted his cyclopean body out of his cyclopean bed and set about to the cyclopean task of cleaning up the entirety of his cyclopean lair.

You must set about your business in earnest.

In search of a challenge, Mary set about translating Tom's sentences, which in any case were difficult, into Old Church Slavonic.

They set about building a house.