| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] been going on for | 14 |
|
| 2 | it [vb -s] been going on for | 14 |
|
| 3 | [pers pn] [vb -s] been going on for | 14 |
|
| 4 | [pron] 's been going on for | 12 |
|
| 5 | [pron] has been going on for | 8 |
|
| 6 | [Wh det] [vb -s] been going on for | 6 |
|
| 7 | which [vb -s] been going on for | 5 |
|
| 8 | which [vb -s] been going on for | 5 |
|
