| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [noun prp] | 1397 |
|
| 2 | [modal v] [noun prp] | 1397 |
|
| 3 | could [noun] | 675 |
|
| 4 | could [noun prp] | 237 |
|
