| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have [been] [verb] by some | 15 |
|
| 2 | [vb mod] have [been] [verb] by some | 15 |
|
| 3 | [modal v] have [been] [vb pp] by some | 15 |
|
| 4 | [modal v] have been [verb] by some | 15 |
|
| 5 | [modal v] have [been] [verb] by some | 15 |
|
