| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been the [num ord] [prep] | 6 |
|
| 2 | [modal v] have been the [num ord] [prep] | 6 |
|
| 3 | have been the [num ord] [noun] [prep] | 19 |
|
| 4 | have been the [num ord] [noun sg] [prep] | 18 |
|
