| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] done [prep] [noun] | 31 |
|
| 2 | could not [be] done [prep] | 16 |
|
| 3 | not [be] done [prep] [noun] | 14 |
|
| 4 | could not [be] [prep] [noun] | 7 |
|
