| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it could [be] [vb pp] [prep] | 391 |
|
| 2 | could [be] [vb pp] [prep] [pron] | 358 |
|
| 3 | it could [be] [vb pp] [pron] | 8 |
|
| 4 | it [be] [vb pp] [prep] [pron] | 6 |
|
| 5 | it could [be] [prep] [pron] | 5 |
|
