| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] | 32770 |
|
| 2 | [noun prp] could [vb infin] | 3762 |
|
| 3 | [noun prp] could [adv] | 2774 |
|
| 4 | [noun prp] [adv] [vb infin] | 240 |
|
