| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [pers pn] [modal v] [vb infin] | 9502 |
|
| 2 | [verb] [pers pn] could [vb infin] | 3707 |
|
| 3 | [vb base] [pron] could [vb infin] | 1156 |
|
| 4 | [vb base] [pers pn] could [verb] | 1122 |
|
