| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [vb mod] | 136217 |
|
| 2 | i [modal v] | 136217 |
|
| 3 | [pron] could | 87089 |
|
| 4 | [pers pn] could | 75830 |
|
| 5 | i could | 16059 |
|
| 6 | i could | 16034 |
|
