| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [verb] [to-vb] | 1131 |
|
| 2 | [be] [verb] [to-vb] [det] | 983 |
|
| 3 | could [be] [verb] [det] | 103 |
|
| 4 | could [verb] [to-vb] [det] | 77 |
|
