| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he could [not/n't] [verb] be [prep] | 5 |
|
| 2 | he could [not/n't] [verb] [be] [prep] | 5 |
|
| 3 | he could [not/n't] [verb] [be] [prep] | 5 |
|
| 4 | he could [not/n't] [vb infin] [be] [prep] | 5 |
|
