| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been run [prep] [num] years | 19 |
|
| 2 | been run for [num] years | 19 |
|
| 3 | been run for [num] years | 19 |
|
| 4 | been running [prep] [num] years | 18 |
|
