| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [be] | 9101 |
|
| 2 | he [vb mod] [be] | 7640 |
|
| 3 | he [modal v] [be] | 7640 |
|
| 4 | he could [be] | 678 |
|
