Example sentences of "may [verb] for several [noun] " in BNC.
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| 1 | Ethnicity is not , however , always marked by linguistic distinctiveness , Labov 's work with Italian and Jewish speakers in New York City shows that such distinctiveness may persist for several generations , or conversely may disappear with the first generation of native-born speakers who nevertheless maintain a strong sense of ethnicity ( Labov 1972b : 281 ) . |
| 2 | Although the clinical signs are abating the bronchi are still inflamed and residual lesions such as bronchial and peribronchial fibrosis may persist for several weeks or months . |
| 3 | Climbing expeditions into the peaks themselves have also left behind piles of rubbish , and Cullen ( 1986 ) points out that the problem is compounded by the fact that in such a high Alpine environment decomposition rates are very slow so that discarded materials may persist for several years if not decades . |
| 4 | These continuous blasts may last for several hours , and in that time they eject large volumes of ash , which is always new magmatic material , rather than shattered bits and pieces of old rock . |
| 5 | The theory that amplexus is a form of ‘ mate guarding ’ by males , preventing others from mating with the same female , is confirmed by comparing the duration of amplexus in explosive breeding European common frog , only one out Among explosive breeders , competition between males for females is intense and amplexus may last for several days or even for the entire breeding period . |
| 6 | BREASTFEEDING — Suckling ; a still nearly universal way of feeding infants and young children in most developing countries , first exclusively by lactation ( full breastfeeding that often lasts about three to six months ) , then introducing supplementary food ( partial breastfeeding that may last for several years until weaning ) . |
| 7 | Drills may fail for several reasons . |