| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [prep] a [adj] | 3013 |
|
| 2 | could [vb infin] [prep] [art] [adj] | 925 |
|
| 3 | could [vb infin] [prep] [art] [adj] | 925 |
|
| 4 | could [vb infin] [prep] a [adj] | 426 |
|
| 5 | could [verb] [prep] a [adj] | 373 |
|
