But since it's a necessary task, how often does it need to be done?

It was a necessary task, but not one he was looking forward to.

The sigh of a man about to do an unpleasant, but necessary task.

On the other hand, it has been used to illustrate two necessary and related tasks that can not be done at the same time.

When all is said and done, this work can be a vile but necessary task.

Soon the days would be too short to do anything but the necessary tasks to stay alive.

For this painful but necessary task my government was elected.

War was looked upon as an unpleasant but necessary task that at times must be performed.

We have no problems filling our days with useful and necessary tasks.

Use this experience as a sign that you need to cut back on what you're doing or to find other ways to complete necessary tasks.