| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] problem have [adv] been | 19 |
|
| 2 | [art] problem have [adv] been | 12 |
|
| 3 | [art] problem have [adv] been | 12 |
|
| 4 | the problem have [adv] been | 11 |
|
| 5 | the problem have [adv] been | 11 |
|
| 6 | [adj] problem have [adv] been | 11 |
|
| 7 | [det] problem have [adv] been | 8 |
|
| 8 | problem have [adv] been [verb] | 31 |
|
| 9 | problem have [adv] been [vb pp] | 30 |
|
