| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] run for several | 6 |
|
| 2 | have been run [prep] several | 6 |
|
| 3 | have [been] run [prep] several | 6 |
|
| 4 | have [been] running [prep] several | 5 |
|
