| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not have been [prep] | 105 |
|
| 2 | [modal v] [adv] have been for | 8 |
|
| 3 | [modal v] not [verb] been for | 6 |
|
| 4 | [modal v] not have [been] for | 6 |
|
| 5 | [modal v] not have be for | 6 |
|
| 6 | [modal v] not have [be] for | 6 |
|
