| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [pron] [pron] [modal v] | 523 |
|
| 2 | [was/were] [pron] [pron] [vb mod] | 523 |
|
| 3 | [be] [pron] [pron] could | 400 |
|
| 4 | [was/were] [pron] [pron] could | 314 |
|
