| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [adj] [noun pl] | 1347 |
|
| 2 | [vb infin] [adj] [noun pl] [unc] | 126 |
|
| 3 | could [vb infin] [adj] [unc] | 38 |
|
| 4 | could [vb infin] [noun pl] [unc] | 17 |
|
