| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] could [adv] [vb infin] been | 221 |
|
| 2 | [noun sg] could [adv] [vb infin] [adj] | 104 |
|
| 3 | could [adv] [vb infin] been [adj] | 82 |
|
| 4 | [noun sg] could [vb infin] been [adj] | 31 |
|
