Example sentences of "a long period [modal v] " in BNC.

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1 The Government has advised that women who are pregnant or may become pregnant should not eat liver , as very large doses of vitamin A taken over a long period may be associated with foetal abnormalities .
2 Conversely , a long period may restrict the purchaser should he wish to make changes to the vendor management team ( either because they do not live up to first impressions or because he wishes to promote them within the enlarged group ) .
3 That is , whether spaced out advertising — the " drip " — over a long period would work better than heavy advertising , the " burst " , concentrated into a short space of time .
4 A case report and clinical-epidemiological studies in patients who have misused anthranoid laxatives over a long period should be considered in a final risk assessment for colorectal cancer in man .
5 Such horses that are locked up in stables without sensory stimulation for a long period will become permanently more anxious and fearful .
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