| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [modal v] have been | 989 |
|
| 2 | [modal v] have been [num] | 354 |
|
| 3 | [det] have been [num] | 33 |
|
| 4 | [det] [modal v] have [num] | 12 |
|
