| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [adv] [prep] [noun] | 309 |
|
| 2 | [modal v] be [adv] [prep] [noun] | 309 |
|
| 3 | could be [adv] [prep] [noun] | 56 |
|
| 4 | could be [adv] [prep] [noun] | 20 |
|
| 5 | could [be] [adv] [prep] [noun] | 20 |
|
