Example sentences of "to prevent [pron] [prep] [v-ing] [prep] the " in BNC.

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1 These are no longer needed and are best killed to prevent them from spreading to the food cupboard , so drop them into the methylated spirits jar .
2 As I mentioned earlier , they glide round in an arc and it is a hell of a job to prevent them from plunging into the weeds some way along your own bank .
3 Has he considered whether the western powers should purchase some of those warheads to prevent them from falling into the hands of non-nuclear powers that have no idea how to maintain or destroy them ?
4 This explanation is then offered to others with the intention of getting them to agree that circumstances conspired to prevent you from performing with the excellence and flair that you would , in the normal course of events , have displayed .
5 We must try to prevent him from erring in the first place ; easier said than done !
6 Other safety factors to consider are the provision of side restraints in the form of a low wall or balustrade , to prevent anyone from falling over the side edges of the steps .
7 A few seconds later as the aircraft gains more speed , it will need more forward movement to prevent it from unsticking with the tail-wheel or skid touching the ground , and climbing away too steeply .
8 Summing up , we are concerned that the recession continued to prevent us from contributing to the funds of the RIBA at the same levels as in 1989 and 1990 and are far from complacent about this situation .
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