| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [det] | 31340 |
|
| 2 | [vb mod] [verb] [det] | 31340 |
|
| 3 | could [verb] [adj] | 6308 |
|
| 4 | could [verb] [det] | 3315 |
|
