| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] that [ex0] | 1910 |
|
| 2 | that [ex0] could | 203 |
|
| 3 | [vb past] [ex0] could | 26 |
|
| 4 | [vb past] that could | 11 |
|
