Example sentences of "have [been] [v-ing] at [prep] " in BNC.

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1 Fortunately , technical developments have ensured that the increase in computing power per unit cost has been growing at about an order of magnitude every 6 years over the last three decades .
2 Miranda taller , with her bushy hair and colouring that the Italians whose paintings she 'd been looking at in the Louvre rendered by priming the canvas with a copper-based green paint , creating a complexion that draws light in rather than gives it out ; Xanthe beside her with her candy radiance of pink and gold , and rounder too , more neatly assembled , wrist to hand , neck to shoulders , ankle to foot .
3 And in understanding the old picture so vividly , he has prepared us to appreciate , and to understand , many things which we either could not previously have hoped to understand , or which we had been looking at with half-open eyes .
4 After a one-minute search , he noticed the National Geographic magazine which he had been looking at with the teacher earlier in the day .
5 But finally deciding it was time to move off , and doing his best to ignore the rooks , which began to mob him again the moment he took flight , he flew three hundred yards to another oak which he had been looking at with some care .
6 we approximately the subject we had been looking at for some time so I approximately , nineteen eighty eight , nineteen eighty nine
7 I must know how , I 've been looking at at the .
8 As I understand the Leeds position , they want what they call a lev a level playing field , or to be aiming at the same goalposts that they 've been aiming at for the last number of years .
9 ‘ What I 'm saying , Vitali — what I 've been driving at in my own bluff way — is that I would very much appreciate , that 's to say , well … ’
10 It 's what we 've been working at for the last three years .
11 The writers and compilers of the stories we have been looking at in this chapter knew that .
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