| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been [art] problem | 18 |
|
| 2 | [modal v] have been [art] problem | 18 |
|
| 3 | [adv] have been [art] problem | 10 |
|
| 4 | would have been [art] problem | 9 |
|
| 5 | would have been [art] problem | 9 |
|
| 6 | not have been [art] problem | 8 |
|
| 7 | [not/n't] have been [art] problem | 8 |
|
| 8 | n't have been [art] problem | 6 |
|
| 9 | have been [art] problem [conj] | 8 |
|
| 10 | have been [art] problem [prep] | 6 |
|
| 11 | have been [art] problem [prep] | 6 |
|
