| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] has been going on [prep] | 10 |
|
| 2 | [Wh det] has been going on [prep] | 10 |
|
| 3 | which has been going on [prep] | 6 |
|
| 4 | [Wh det] has been going on for | 5 |
|
| 5 | [Wh det] has been going on for | 5 |
|
