| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [noun] [prep] | 154 |
|
| 2 | [modal v] have [noun] [prep] [det] | 122 |
|
| 3 | [modal v] have been [prep] [det] | 105 |
|
| 4 | have been [noun] [prep] [det] | 103 |
|
