| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [art] [adj] | 1220 |
|
| 2 | which [modal v] have been [adj] | 140 |
|
| 3 | which [modal v] have [art] [adj] | 100 |
|
| 4 | which [modal v] have been [art] | 64 |
|
