| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [vb pp] [prep] [noun] | 1470 |
|
| 2 | also [be] [vb pp] [prep] [noun] | 841 |
|
| 3 | could also [be] [vb pp] [prep] | 149 |
|
| 4 | could also [be] [prep] [noun] | 6 |
|
