| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [det] serious [noun] | 8 |
|
| 2 | have been [det] serious [noun] | 8 |
|
| 3 | [verb] been [det] serious [noun pl] | 6 |
|
| 4 | have been [det] serious [noun] | 5 |
|
| 5 | [vb base] been [det] serious [noun] | 5 |
|
