| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] could [vb infin] [noun] | 117 |
|
| 2 | could [vb infin] [adv] [noun] | 96 |
|
| 3 | [coord] could [vb infin] [adv] | 93 |
|
| 4 | [coord] [vb infin] [adv] [noun] | 31 |
|
