| research on | 83.21 | Research on the matter is far from conclusive. | ||
| research into | 49.11 | ...research into canine diseases. | ||
| research in | 40.22 | ...research in marine biology. | ||
| research at | 28.31 | He did some education research at Harvard. | ||
| research for | 20.08 | She had done research for a medical writer. | ||
| research by | 15.67 | He had done enough research by then. | ||
| research with | 11.26 | She shared her research with a dozen neighbors. | ||
| research to | 7.37 | Dalton likens the research to a chess game. | ||
| research of | 6.06 | So far, the research of the UCLA. | ||
| research from | 5.33 | The teachers were in on my research from the beginning. | ||
| research as | 3.49 | Are we going to treat research as pork? | ||
| research about | 2.63 | You can do your own research about that. | ||
| research before | 1.84 | Of course, do some research before shopping. | ||
| research over | 1.25 | NASA has played a key role in ozone research over the years. | ||
| research through | 1.25 | They said they would try to stop the research through legal action. | ||
| research after | 0.99 | Emma backed cancer research after two of her relatives died from the disease. | ||
| research among | 0.92 | Most cognition research among primates has focused on the higher-profile African apes. | ||
| research than | 0.86 | Some had done more research than others. | ||
| research without | 0.86 | And some merely indicate dogged research without benefit of a rudder. | ||
| research because_of | 0.72 | But the institute has had to reduce its staff and research because of reductions in aid from the West. |