Example sentences of "be necessary [subord] a [adj] [noun sg] " in BNC.
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1 | This precludes the need for the extensive , long range , diffusion of the chain through a highly viscous medium that would be necessary if a regular chain folded structure was to be constructed . |
2 | It is essential that these councils are set up as soon as possible so that they may start work on all the detailed arrangements and consultations that will be necessary if a smooth transition to the new funding system is to be ensured . |
3 | Rough planks can be used in a formal pool with square or rectangular sides , but marine plywood and a series of props and strengtheners are necessary when an irregular shape has to be catered for . |
4 | The symptoms are moving in the opposite direction to suppression and this is necessary if a long-lasting cure is to be achieved . |
5 | The division of responsibilities between the two tiers means that some co-ordination is necessary if an effective service is to be provided . |
6 | Such an approach is necessary because a warming trend due to greenhouse gas changes may be counteracted initially by a cooling trend caused by other factors . |
7 | We should satisfy ourselves that any work beyond this was necessary because a restricted repair was not practical and re-roofing in part or in full was the only effective method of repair . |