| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [adj] [prep] | 13469 |
|
| 2 | could [vb infin] [prep] | 9758 |
|
| 3 | could [vb infin] [adj] | 6286 |
|
| 4 | could [adj] [prep] | 24 |
|
