| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have become [art] [noun] | 1192 |
|
| 2 | have [verb] [art] problem | 337 |
|
| 3 | have [vb pp] [art] problem | 303 |
|
| 4 | [verb] become [art] problem | 9 |
|
| 5 | have become [art] problem | 9 |
|
