| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] [noun] | 1732 |
|
| 2 | could [adv] [vb infin] [adv] | 1339 |
|
| 3 | [adv] [vb infin] [adv] [noun] | 212 |
|
| 4 | could [vb infin] [adv] [noun] | 96 |
|
| 5 | could [adv] [adv] [noun] | 8 |
|
