| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [not/n't] have been [adj] for | 38 |
|
| 2 | [modal v] [not/n't] have been [adj] for | 36 |
|
| 3 | [modal v] [not/n't] have been [verb] for | 15 |
|
| 4 | [modal v] [not/n't] have been [vb pp] for | 11 |
|
| 5 | [modal v] [not/n't] have been easy for | 9 |
|
| 6 | [modal v] [not/n't] have been easy for | 9 |
|
| 7 | [modal v] [not/n't] have been possible for | 7 |
|
| 8 | [modal v] [not/n't] have been possible for | 7 |
|
