Example sentences of "[adv] this has [be] [vb pp] " in BNC.

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1 Whether or not this has been implemented is unclear .
2 Elsewhere this has been described in terms of semiology .
3 Usually this has been emphasised as an attempt to make a statement about which people in the population are most likely , given other interacting events , to develop psychotic illness ; in fact that is how we initially phrased the question here .
4 More than once this has been printed on the programme as ‘ coming to terms with your own immortality ’ .
5 K v and v can be established by calibrating with polymer fractions of known molar mass , and once this has been established for a system , [ η ] alone will give M for an unknown fraction .
6 Traditionally this has been done by referring to a parts list and general assembly drawings , a long and tedious process .
7 Now this has been selected to help Children in Need .
8 Now this has been forced to change .
9 So far this has been confined to states with lifetimes longer than about one millisecond ( ’ isomeric ’ states ) but experiments are under way to study excited slates in nuclei with lifetimes as short as microseconds .
10 Often this has been done deliberately : factories and sewage works are built to discharge into seas and rivers , and ‘ honey barges ’ ferry cargoes of sewage out to sea .
11 For many years the Government offered an annual award of 10000 Belgian francs for research into sexually transmitted diseases , but even this has been discontinued , perhaps because the award always went to a foreigner .
12 Robin Penfold describes how this has been achieved .
13 The Report discusses the problems of presenting statistics from many sources and how this has been tackled .
14 The limit will be relevant for calculating stamp duty as the Inland Revenue will look to the maximum price payable and how this has been allocated .
15 Now , I 've gone right through all the bloody rules to this and I ca n't see where this has been expired .
16 Another risk factor for cervical neoplasia is sexual behaviour : a woman 's having intercourse before the age of 17 was the most powerfully discriminating variable in nearly all the studies where this has been investigated , and a history of multiple sexual partners is an important supporting variable .
17 In policy terms we are interested in the regulation of the press reporting , how and why this has been done , and its effects , if any .
18 Recently this has been challenged , and it has been suggested that the third which was allocated was one-third of the taxation due on a property .
19 Some authors have shown that lipoxygenase inhibitors are protective in such protocols , but more recently this has been questioned .
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