| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] of [been] [det] | 18 |
|
| 2 | [vb mod] [prep] been [det] | 18 |
|
| 3 | [vb mod] [prep] [been] [det] | 18 |
|
| 4 | [vb mod] of [been] [det] | 18 |
|
| 5 | must [prep] [been] [det] | 12 |
|
| 6 | [vb mod] [prep] [been] some | 6 |
|
