Example sentences of "when they [verb] [not/n't] [verb] [adj] " in BNC.

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1 When they do not perceive any such benefits , they feel free to deviate .
2 The case for co-operative R&D ventures that emerges from our survey of the theoretical literature in section II above suggests that they are most desirable where technological spillovers and pecuniary externalities are large , where participating firms produce complementary products , when they are focused on the R rather than the D , and when they do not enhance downstream product market power .
3 Thus it could be argued that children only psychologize as a last resort when they do not have ready access to information about plausible causal mechanisms .
4 Kin are those with whom we adopt the special style of informal communication which is adopted towards members of the immediate domestic family who are treated in this specially favoured way even when they do not live all together in one household .
5 People have had problems with being labelled ‘ Hendrix clones ’ , possibly when they do n't want such a tag — the excellent Robin Trower springs to mind .
6 When they do n't have enough time , teachers know , even if they are fairly successful at not thinking about it , that in some way or other they are letting down their pupils , their colleagues or themselves .
7 He refused birds the permission to fly or the winds to blow , and became annoyed when they did n't pay any attention to him .
8 They used up all their goals against Oldham did n't they , two weeks ago when they did n't force any corners at all in the match ; scored five goals nevertheless .
9 When they did not return that night , Richard led a search party for them at first light the following morning .
10 When they did not hear any further news , Mr McNeilage and his wife , Caryl , became increasingly worried about Alistair 's safety .
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