| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [vb pp] that | 397 |
|
| 2 | could also [be] [vb pp] | 278 |
|
| 3 | also [be] [vb pp] that | 251 |
|
| 4 | could also [be] that | 6 |
|
