Example sentences of "[subord] [pron] have [be] [v-ing] for " in BNC.

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1 If you have been hunting for the perfect diet for a very long time it will be difficult to stop , actually to believe that good weight control can be established without resorting to one special diet that you go on ( and then , and this is the snag , come off again ) .
2 if they have been sniffing for so e time , arrange a health check
3 When we have breakfast , on the 8th floor , we can look down on the river , and watch all the river traffic , including large passenger vessels , big merchant ships belching smoke , strings of wooden barges , and big and small old-fashioned junks , which look as if they have been sailing for a 100 years at least .
4 You learn by doing , because you have been talking for a long time .
5 After you have been walking for about ten minutes take your pulse .
6 Selfing populations of plants could be valuable material , although the retention of unused yet presumably expensive floral features in some populations raised doubts as to whether they have been selfing for long enough to reach evolutionary equilibrium .
7 Perhaps my hon. Friend does not know that the Government have just announced that they intend to nationalise the private enterprise operation that I am running , which entails my sending those replies to all Opposition Members — as I have been doing for the past three months — and , this month , to Conservative Members , following an offer made to their Whips some time ago .
8 When you have been teaching for as long as I have you 'll realise that it 's no good at all being kind to children .
9 We are fighting to trade freely and openly within the law , as we have been doing for many years .
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