| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [modal v] [vb infin] a | 21194 |
|
| 2 | [pron] [vb mod] [vb infin] a | 21194 |
|
| 3 | [pron] could [vb infin] [art] | 7521 |
|
| 4 | [pron] could [verb] a | 2934 |
|
| 5 | [pron] could [vb infin] a | 2931 |
|
