Example sentences of "they have [been] do [prep] " in BNC.

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1 At one time push-ups were done on the knuckles but since medical evidence proved that this could cause severe metacarpal damage they have been done on the flat of the palms .
2 Yet if they have been done in this way it means they have not been done !
3 ‘ I do not wish to be hard upon poor people in great affliction ; but I can not help thinking that they have been doing for hundreds of years past something very like what the Bible calls ‘ tempting God' ’ — staking their property and their lives upon the chances or no earthquakes coming , while they ought to have known that an earthquake might come an day . ’
4 There is also a ‘ Stop and Check ’ revision section in the Workbook after every third unit to allow students to review what they have been doing in class and to decide their own priorities for future self-study .
5 While it is perfectly valid for children to step back from what they have been doing in drama and write about it , the exciting alternative of writing ( or drawing , or carrying out scientific experiments ) within the context of the drama , as the characters they are playing , produces lively and highly motivated work .
6 Meanwhile , in this closing scene , the water hyacinths proceed towards the sea , as they have been doing throughout the action .
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