| Share | Phrase |
| 9.56% | water [using as instrument] flush |
| 8.89% | flush with medium |
| 7.11% | flush against flange |
| 7.07% | flush system [perform operation] |
| 5.93% | flush bed [perform operation] |
| 5.21% | flush for retain |
| 4.11% | edge [using as instrument] flush |
| 3.82% | locate [location] flush |
| 3.35% | flush catalyst [perform operation] |
| 3.09% | surface [using as instrument] flush |
| 2.94% | flush fuel [perform operation] |
| 2.84% | substantially [degree] flush |
| 2.76% | flush radiator [perform operation] |
| 2.73% | flush chamber [perform operation] |
| 2.71% | bore [does] flush |
| 2.56% | flush inlet [perform operation] |
| 2.44% | flush line [perform operation] |
| 2.17% | flush from system |
| 2.12% | operate [temporal] flush |
| 2.01% | flush means [perform operation] |
| 1.96% | oil [does] flush |
| 1.90% | surface [does] flush |
| 1.71% | flush space [perform operation] |
| 1.62% | flush block [perform operation] |
| 1.47% | surface flush |
| 1.46% | flush modal may |
| 1.32% | flush passage [perform operation] |
| 1.30% | flush modal can |
| 1.24% | flush [does] extend |
| 1.22% | fuel [does] flush |
| 0.73% | flush modal will |
| 0.49% | not flush |