| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] been [vb pp] [prep] [adj] | 97 |
|
| 2 | could [vb infin] been [vb pp] [prep] [adj] | 97 |
|
| 3 | [modal v] [vb infin] been [vb pp] at [adj] | 25 |
|
| 4 | [vb mod] [vb infin] been [vb pp] at [adj] | 25 |
|
| 5 | could [vb infin] been [vb pp] at [adj] | 12 |
|
| 6 | could [vb infin] [been] [vb pp] at [adj] | 12 |
|
| 7 | could [vb infin] been [vb pp] at [adj] | 12 |
|
| 8 | could [vb infin] be [vb pp] at [adj] | 12 |
|
| 9 | could [vb infin] been [verb] at [adj] | 12 |
|
| 10 | could [vb infin] [be] [vb pp] at [adj] | 12 |
|
| 11 | could [verb] been [vb pp] at [adj] | 12 |
|
