Example sentences of "when [noun pl] have [prep] " in BNC.

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1 Even when pods have to be opened in the field , to save weight on the return journey , the seeds can be kept in good condition for two weeks by packing them in damp charcoal .
2 When subjects had to concurrently hold in memory two or four nouns on each trial a superiority of the RVF emerged .
3 However , when subjects had to concurrently remember 2,4 or 6 words the reaction time for both hemispheres improved , but that for the right hemisphere more than that for the left hemisphere , which resulted in a LVF superiority .
4 Indeed the need to know about the earlier and later stages of a child 's education becomes imperative when schools have to plan the next stage of learning on the basis of achievement so far , when teachers have to evaluate and — if appropriate — change their own teaching , when parents have to be told in detail how their children are progressing and when LEAs , parents and governors have to have information which allows the performance of the school as a whole to be evaluated .
5 They are the only ones certain to be counted in an election , for votes of lower preference are counted only when transfers have to be made .
6 Other authors have claimed that visual laterality effects occur when judgements have to be made from memory , that is , beyond the coding stage ( Hardyck , Tzeng and " Wang , 1977 ; 1978 ; Kirsner , 1980 ; Kirsner and Brown , 1981 . )
7 When goods have to be despatched by a carrier ( e.g. the Post Office ) Rule 5(2) is often helpful .
8 But , occasions do arise when positions have to be determined from the intersection of position lines .
9 Almost by definition , crises are periods when the normally routinized operations of the bureaucracy are insufficient or can not be relied on , when decisions have to be quickly pushed up through the chain of command , and where unusually large and direct role in controlling policy implementation has to be taken by political leaders .
10 When Queens have to they do it by a cerebral process passed down in the blood …
11 CAD gains dramatically when components have to be redrawn many times , when it may out-perform a human by 100 : 1 .
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