| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [vb pp] possible [prep] | 10 |
|
| 2 | [vb past] be [vb pp] possible by | 10 |
|
| 3 | [vb past] be [vb pp] possible by | 10 |
|
| 4 | [vb past] be [vb pp] possible [prep] | 10 |
|
