Example sentences of "once every [noun sg] " in BNC.

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1 Bills seeking to exclude various categories of placemen from Parliament were introduced on average once every session between 1692 and 1714 , and a general measure banning all placemen from the Commons found its way into the Act of Settlement of 1701 ( which laid down the conditions on which the Hanoverians would succeed to the throne ) , although this provision was subsequently modified before the Act came into effect .
2 Your tank , despite its length , holds only 240 litres , which should be turned over once every hour .
3 For the planted aquarium the total tank volume should be turned over a maximum of once every hour , and filtered gently , with no spraybars , aeration , or jetting effect .
4 Therefore the total water volume of your aquarium ( 100 litres ) should be turned over a maximum of once every hour , and the water should flow very gently back into the aquarium , avoiding strong currents and surface turbulence .
5 CURRENT fashion in British gardening is illustrated among the gardens from 30 nations exhibited at the Floriade at The Hague , the dazzling horticulture show held in Holland only once every decade , which was opened by Queen Beatrix yesterday and will run for seven months .
6 Floriade ( at Zoetermeer until October 11 ) is an international festival of gardening held in The Netherlands only once every decade , when every aspect of the world of horticulture is on display to amuse , inform , surprise and delight .
7 The El Nino is a massive surge of warm water that , once every decade or so , builds up in the eastern Pacific along the South American seaboard .
8 This happens maybe once every couple of months but recently , every couple of weeks , he trots off on his own .
9 It may happen once every couple of weeks , or four times a day .
10 it gets a bit yeah , which is why I 'm gon na stick with two , I mean now they want to go and see Peter Pan next , when that comes down which will be what probably a month , about once every couple of months they 'll go or once a month
11 The jagged hole through which he 'd been propelled some minutes before now rushed past his face once every minute or so .
12 He 's a soldier that gives everything ; throws himself at the enemy and for once every ball , he touched finished in the back of the net .
13 A group of , say , four machines gives you a pretty good chance of hitting where you want at least once every turn .
14 a ‘ statistically average ’ person aged 16 or over can expect : a robbery once every five centuries ( not attempts ) , an assault resulting in injury ( even if slight ) once every century , the family car to be taken by joyriders once every 60 years , a burglary in the home once every 40 years .
15 They estimate that extremely high sea levels , which historically occur roughly once every century , could be expected more than once every five years in many seaside towns by 2030 .
16 That map will be reviewed , as it is once every Parliament , at the beginning of the next Parliament .
17 The Canterbury spar is raked over occasionally to break up any ‘ dead spots ’ in the filter and surface mulm is syphoned off once every fortnight .
18 And erm how , how do you , do you do your shopping , do you do it once every fortnight , or do you ?
19 There is currently no rolling settlements system and all trades are settled once every fortnight .
20 one a month or once every fortnight
21 Yet another method was to harness the fish , with a thin silk cord that unwound over a large pulley , actuating an electric relay once every revolution .
22 Two acting notes for Frank : Less is more — do not shift your eyes at the audience so much , stare them down once every scene ; when in doubt about what to say next do not keep ad-libbing about Harry .
23 The hypnosis session over , I suggested to Joyce that she should run through exactly the same set of images at least once every day for the next two weeks .
24 The steroid treatment was continued , with 30 mg prednison orally once every day .
25 As a result , as the Earth goes around the sun once every year , its two hemispheres alternate between receiving the sun 's rays more directly ( in summer ) or obliquely ( in winter ) .
26 ‘ I remember , once every year , the town would explode with music when this plainchant thing would come to Wexford .
27 The lord had to employ labourers to chop the growth back once every year ; the same men were to fill in large holes and ruts in the highway with stones and boulders removed from flanking fields .
28 I mean we hardly went into another shop and yet , you see , we have a young chappie like yourself who comes to the Guild once every year and shows us slides of old Walsall , Walsall Wood , Aldridge , the local area , and he said I 'm not very good Ruth at talking but he he 'd got the slides you know , and it , it used to end up with me doing the commentary on Walsall Wood , because you stand on the of Walsall Wood , which is there now , and your Co-op was right on the corner which is why I call it the corner store and you see people congregated there , people met there and when I 'd been accused of the , we 'd been at the college or at other conferences and why ca n't we get Guild members today , well that was the breeding ground your shop , you see .
29 My hon. Friend the Minister of State will understand why there is reluctance to change a system that has served us well and to reduce the frequency of inspections from once every year to once every four years .
30 Same Time , Next Year is a lively , humorous account of a developing relationship , at first sexual but later broadening into a touching tenderness , of two people long married to others , who meet once every year in a California motel for what used to be called ‘ a dirty weekend ’ .
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