| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] could [verb] their | 261 |
|
| 2 | [n mass] [vb mod] [verb] their | 168 |
|
| 3 | [n mass] [modal v] [verb] their | 168 |
|
| 4 | [n mass] could [verb] [pron] | 67 |
|
| 5 | [n mass] could [verb] their | 12 |
|
