Meanwhile, with the magnetic field patterns permanently disrupted, the surface life will continue to behave erratically or have difficulty performing necessary tasks.

He was shy and had difficulty performing in front of people.

He has difficulty performing such simple actions as giving a thumbs-up, and crushing an insect by stepping on it.

U2 had difficulty performing the song live, which Bono acknowledged to the audience following its debut.

Some of these warning signs may include memory loss, difficulty performing familiar tasks, poor or impaired judgment and problems with language.

Hackett, who had little on-stage playing experience, when he joined Genesis, had some initial difficulty performing with the group.

However, Jake has difficulty performing on cue.

The person begins to have difficulty performing daily tasks, such as eating, dressing, and grooming.

Anyone of an artistic temperament would have difficulty performing with such arrogant females.

Although the second example involved considerably more checking, the principle was the same, and any experienced mathematician would have no difficulty performing the necessary verifications.