| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [vb pp] [art] [noun] | 577 |
|
| 2 | could [vb infin] up [art] [noun] | 108 |
|
| 3 | [vb infin] [vb pp] up [art] [noun] | 71 |
|
| 4 | could [vb infin] [vb pp] up [art] | 20 |
|
