| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] could [adv] [vb infin] | 830 |
|
| 2 | which could [adv] [vb infin] | 205 |
|
| 3 | which [noun prp] could [vb infin] | 49 |
|
| 4 | which [noun prp] could [adv] | 16 |
|
