| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] which [vb past] been | 1475 |
|
| 2 | issue which [verb] been | 23 |
|
| 3 | issue [pron] [vb past] been | 9 |
|
| 4 | issue which [vb past] [been] | 8 |
|
| 5 | issue which [vb past] [be] | 8 |
|
| 6 | issue which [vb past] be | 8 |
|
