| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [conj] [modal v] [vb infin] | 1009 |
|
| 2 | [adj] [conj] could [vb infin] | 139 |
|
| 3 | [adj] [conj] could [verb] | 99 |
|
