| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] could [adv] [vb infin] | 3311 |
|
| 2 | could [adv] [adv] [vb infin] | 2430 |
|
| 3 | [noun sg] could [adv] [adv] | 445 |
|
| 4 | [noun sg] [adv] [adv] [vb infin] | 47 |
|
