Example sentences of "have [not/n't] [adv] been [verb] [prep] " in BNC.

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1 The virus is highly infectious to those who have not previously been exposed to it , but the majority of people have a degree of immunity due to past clinical or symptomless mouth or face infection .
2 Delayed increases in rotation rate have not previously been observed in glitches in any pulsar , on either a short or a long timescale .
3 ( 1 ) For the purpose of bringing to a conclusion any proceedings which are to be brought to a conclusion at a time appointed by this Order and which have not previously been brought to a conclusion , the Chairman or Mr. Speaker shall forthwith put the following Questions ( but no others ) —
4 Although structurally related molecules have recently been described in skeletal muscle , cadherins are not ubiquitously expressed by mesenchymal cells and have not previously been identified on leukocytes .
5 PENALTY : If an amount is shown in respect of a penalty or penalties being recovered under the bill and you have not previously been informed of the ground on which it has or they have been imposed , further particulars will be found in the information accompanying the bill .
6 The seroprevalence of toxoplasma IgG is known to vary among countries , but differences according to country of birth and ethnic group have not previously been investigated in a single population based study .
7 However , there are many new avenues opening up for qualified staff in areas which have not traditionally been associated with nursing .
8 Learning to read involves no learning ability that children have not already been called upon to exercise in order to understand the language spoken at home … and from Goodman ( 1972 ) :
9 In this chapter I shall set out all those questions which are most frequently asked by prospective patients , and which have not already been covered in Chapter 1 ; and in Chapter 3 , by giving details of the progress of one particular case , I shall endeavour to provide some idea of what to expect during a typical regression therapy session .
10 ‘ But there wo n't be any additional changes that have not already been taken into account .
11 There are some aspects of psychology which have not yet been fitted into the neural net paradigm .
12 There are a number of additional provisions , some more complex than others , allowing tenders to be made against contracts which , though made on the market , have not yet been registered by LCH ; and providing for unusual contracts under which delivery has to be initiated by the buyer .
13 ‘ We are also trying to arrange a surprise visiting loco but at the moment details have not yet been finalised with its owner .
14 This surplus is due to the fact that our grant was not available until the middle of the year and therefore our targets have not yet been reached in certain areas .
15 Molecular lines of HDO and HO 37 Cl are expected at frequencies corresponding to v rel =-971 and 912kms -1 , respectively , but these lines have not yet been detected in space and must be very weak .
16 Note : No balance sheet entries need to be or should be discussed at this stage as the students have not yet been exposed to debtors etc .
17 However , its contents have not yet been revealed in any detail , neither has the valuable Abridgement been considered .
18 It 's not they have not yet been developed to be wholly reliable , and there are problems to be solved to do with the fluctuation in the wind power , but I think perhaps some of those are exaggerated .
19 The ecological implications of the scheme , which will not be completed until 2000 , have not yet been analysed by the embryonic Spanish environmental movement .
20 Business programs and educational material have not yet been bootlegged on any large scale in Britain .
21 AMES is a channel for the incorporation of those sectors of women who , on account of their specific conditions ( housewives , professionals , some teachers , slum-dwellers and students ) have not yet been incorporated into the popular struggle .
22 Given that these indicators already exist for Local Authorities , it is surely indefensible to fail to explore their potential for improving the equity of resource allocation , and perhaps surprising that they have not yet been incorporated in the formulae for assessing GRE .
23 It is early days for these schemes and , because they have not yet been tested in the courts , must come with an appropriate health warning .
24 Where , however , there are conditions precedent to a lease being granted , eg the fact that the premises have not yet been constructed by the landlord , or the tenant is to carry out works before the lease is granted , or there is some other reason preventing the immediate completion of the lease , the parties will , or would be advised to , enter into an agreement for lease , perhaps along the following lines .
25 Convicted prisoners are outnumbered by the euphemistically named ‘ undertrials ’ — remanded prisoners for most of whom trial is months ( if not years ) away and many of whom , detained pending police investigations , have not yet been charged with an offence ( Diaz 1977 ) .
26 Timetables have not yet been adjusted for the higher performance of the Class 158s and the journey time to London remains at about 5 hours .
27 The people are almost foreign to me , the more so because country people have not yet been thrown into quite the same confusion as townspeople , and therefore look awkwardly upon those who are not in trade — writing is an unskilled labour and not a trade — not on the land , and not idle … .
28 Satisfactory explanations for these reductions in mortality from circulatory diseases have not yet been arrived at and may reflect a change in the disease , improved medical care or changes in lifestyle habits .
29 Solowka is the old , flat-capped Northerner forever dreaming of ferrets and Ukrainian records ; Gregory is the quiet , slightly mysterious one ; Gedge is the older brother keeping a paternal watch over everybody ; Smith 's traits , apart from an unruly fringe , have not yet been distilled into comic book form .
30 Perhaps these were non-attenders , but if so we have not yet been notified by the hospitals .
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