1.   Both psychiatrists said the patient did not satisfy the conditions necessary for continued detention under the Mental Health Act.

2.   Consensus has to be a necessary condition of partnership.

3.   Enlightened self-interest is, for those of us who are not saints, the necessary condition of social behaviour.

4.   Equilibrium is a necessary condition toward which the organism constantly strives.

5.   Few critics join Ortega in refusing women even the conditions necessary to write lyric poetry on sentimental themes.

6.   For example, conditions necessary for seeds to germinate were often studied in much the same way by successive age groups.

7.   Investment is a necessary condition of economic growth.

8.   Most people agreed that a certain amount of clearance and demolition provided a necessary condition for renewal.