| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [vb pp] that [art] | 20 |
|
| 2 | could [vb infin] [vb pp] [that] [art] | 20 |
|
| 3 | could have [vb pp] [that] [art] | 18 |
|
| 4 | could [vb infin] [vb pp] [that] the | 17 |
|
| 5 | could [vb infin] [vb pp] [that] the | 17 |
|
