| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [be] [verb] [prep] | 1334 |
|
| 2 | could not [be] [verb] [prep] | 894 |
|
| 3 | not [adv] [be] [verb] [prep] | 533 |
|
| 4 | could not [adv] [be] [verb] | 194 |
|
| 5 | could not [adv] [verb] [prep] | 174 |
|
