This phase of the project is the most time-consuming.

Often, the most time-consuming part of soup-making is waiting for some water to come to the boil.

The most time-consuming part of it was fighting off all the types who found me attractive.

This step is the most time-consuming part of the algorithm.

Manufacturing the masks is the most time-consuming part of the process.

This was the most time-consuming part of the whole exercise.

"The hardest part of my work, and the most time-consuming, is not painting at all, but study," he said.

What's you most time-consuming job as a Koi-keeper in summer?

My most time-consuming duty was to review reports from other Explorers.

But the most time-consuming thing for me is writing the music.