| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] done [prep] | 152 |
|
| 2 | not [be] done [prep] | 73 |
|
| 3 | could not [be] done | 25 |
|
| 4 | could not [be] [prep] | 24 |
|
