| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb mod] of [been] | 29 |
|
| 2 | they [vb mod] of [been] | 29 |
|
| 3 | they [vb mod] [prep] been | 29 |
|
| 4 | they [vb mod] [prep] [been] | 29 |
|
| 5 | they [vb mod] [prep] [been] | 27 |
|
| 6 | they must [prep] [been] | 12 |
|
| 7 | they could [prep] [been] | 6 |
|
