| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [prep] [art] | 4628 |
|
| 2 | could be [prep] [art] | 254 |
|
| 3 | could be [prep] [art] | 254 |
|
| 4 | could [be] [prep] [art] | 254 |
|
| 5 | could [be] [prep] [art] | 254 |
|
