It caused my family a whole lot of unnecessary grief, stress and upset, with constant form-filling and hassle.

BBC: Parents face fees for child maintenance rulings

One of the dominant characteristics of beaches is their constant changes in form, shape and sometimes the very material of which they are composed.

UNESCO: Introduction

And although the parakeets required human assistance to get from Asia to Britain, their arrival is only an extreme form of the constant, natural shuffling of species brought about by the movements of adventurous individuals which studies such as this seek to monitor.

ECONOMIST: The oldest bird in the world

The headlines were telling us that Iraqis are struggling to form a unity government amid constant violent encounters.

NPR: Iraqis Worried About Increasing Violence

This is an aggressive form of defence because it keeps your opponent under constant pressure.

BBC: DEFENCE