| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] and [vb mod] [verb] been [verb] | 18 |
|
| 2 | exist and [modal v] [verb] been [verb] | 11 |
|
| 3 | exist and [vb mod] [verb] [be] [verb] | 11 |
|
| 4 | exist and [vb mod] [verb] [been] [verb] | 11 |
|
| 5 | exist and [vb mod] [verb] be [verb] | 11 |
|
| 6 | exist [coord] [vb mod] [verb] been [verb] | 11 |
|
| 7 | exist [conj] [vb mod] [verb] been [verb] | 11 |
|
| 8 | exist and [vb mod] [verb] been [verb] | 11 |
|
