| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [vb pp] [prep] [adj] [noun pl] | 2766 |
|
| 2 | could [be] [vb pp] [prep] [adj] [noun] | 543 |
|
| 3 | could [be] [vb pp] [prep] [adj] [noun pl] | 468 |
|
| 4 | could [be] [verb] [prep] [adj] [noun pl] | 295 |
|
