| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [verb] [prep] [art] [adj] | 9900 |
|
| 2 | [vb mod] be [verb] [prep] [art] [adj] | 9900 |
|
| 3 | could [be] [verb] [prep] [art] [adj] | 917 |
|
| 4 | could be [verb] [prep] [art] [adj] | 917 |
|
