| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [noun] at a | 68 |
|
| 2 | could [vb infin] [noun] at | 48 |
|
| 3 | could [vb infin] [noun] a | 32 |
|
| 4 | could [vb infin] at a | 27 |
|
