| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] could be [vb pp] [prep] | 2408 |
|
| 2 | could be [vb pp] [prep] [be] | 148 |
|
| 3 | [noun sg] be [vb pp] [prep] [be] | 19 |
|
