| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [noun] [prep] | 1665 |
|
| 2 | [vb infin] been [noun] [prep] | 206 |
|
| 3 | could [vb infin] been [prep] | 99 |
|
| 4 | could [vb infin] been [noun] | 95 |
|
